﻿{"id":10430,"date":"2018-04-06T09:17:58","date_gmt":"2018-04-06T09:17:58","guid":{"rendered":"https:\/\/www.seaviewprogress.com\/boutique\/uncategorized\/type-a\/"},"modified":"2026-02-16T02:51:16","modified_gmt":"2026-02-16T02:51:16","slug":"type-a","status":"publish","type":"product","link":"https:\/\/www.seaviewprogress.com\/en\/webstore\/pss-shaft-seal\/type-a\/","title":{"rendered":"PSS Type A seal"},"content":{"rendered":"<p>The PSS Shaft Seal is <strong>the #1 selling marine mechanical seal worldwide<\/strong> and is installed as standard equipment by many of the worlds most reputable <strong>boat<\/strong> builders and boat yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Boat builders and boat yards recognize the advantages and value of installing the PSS as it <strong>eliminates the maintenance<\/strong>, constant adjustment &amp; cost associated with traditional packing type glands. Aside from these benefits, the <strong>PSS Shaft Seal<\/strong> helps to <strong>eliminate water<\/strong> in the bilge (<strong>100% water tight<\/strong>) &amp; wear to the propeller shaft.<\/p>\n<h3 id=\"size-chart-pss-a\">PSS Type A Compression Chart:<\/h3>\n<div><img decoding=\"async\" class=\"aligncenter\" style=\"margin-left: auto;margin-right: auto\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0855\/5958\/files\/pss-type-a-dimension-drawing.jpg?v=1567789127\" alt=\"PSS Type A Dimension Drawing\" \/><\/div>\n<p>&nbsp;<\/p>\n<table class=\"table table-striped\" width=\"100%\">\n<caption>\n<h4>Imperial<\/h4>\n<\/caption>\n<tbody>\n<tr>\n<th style=\"text-align: center\"><strong>Shaft Diameter (A)<\/strong><\/th>\n<th style=\"text-align: center\"><strong>Stern Tube Diameter (B)<\/strong><\/th>\n<th style=\"text-align: center\"><strong>Approx Compressed Length (C)<\/strong><\/th>\n<th style=\"text-align: center\"><strong>D<\/strong><\/th>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">3\/4&#8243;, 7\/8&#8243;, 1&#8243;, 1-1\/8&#8243;<\/td>\n<td style=\"text-align: center\">1-1\/4&#8243;, 1-1\/2&#8243;, 1-3\/4&#8243;, 2&#8243;, 2-1\/4&#8243;, 2-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">6&#8243; &#8211; 6.125&#8243;<\/td>\n<td style=\"text-align: center\">2.375&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">3\/4&#8243;, 7\/8&#8243;, 1&#8243;, 1-1\/8&#8243;<\/td>\n<td style=\"text-align: center\">2-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">6.625&#8243;<\/td>\n<td style=\"text-align: center\">2.375&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">1-1\/4&#8243;, 1-3\/8&#8243;<\/td>\n<td style=\"text-align: center\">1-3\/4&#8243;, 2&#8243;, 2-1\/4&#8243;, 2-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">6.625&#8243; &#8211; 6.75&#8243;<\/td>\n<td style=\"text-align: center\">2.875&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">1-1\/4&#8243;, 1-3\/8&#8243;<\/td>\n<td style=\"text-align: center\">2-3\/4&#8243;, 3&#8243;, 3-1\/4&#8243;, 3-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">8.125&#8243; &#8211; 8.313&#8243;<\/td>\n<td style=\"text-align: center\">2.875&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">1-1\/2&#8243;, 1-9\/16&#8243;, 1-3\/4&#8243;, 2&#8243;<\/td>\n<td style=\"text-align: center\">2&#8243;, 2-1\/4&#8243;, 2-1\/2&#8243;, 2-3\/4&#8243;, 3&#8243;, 3-1\/4&#8243;, 3-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">8&#8243; &#8211; 8.218&#8243;<\/td>\n<td style=\"text-align: center\">3.75&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">1-1\/2&#8243;, 1-9\/16&#8243;, 1-3\/4&#8243;, 2&#8243;<\/td>\n<td style=\"text-align: center\">3-3\/4&#8243;, 4&#8243;<\/td>\n<td style=\"text-align: center\">8.405&#8243;<\/td>\n<td style=\"text-align: center\">3.75&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">2-1\/4&#8243;, 2-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">3-1\/4&#8243;, 3-1\/2&#8243;, 3-3\/4&#8243;, 4&#8243;<\/td>\n<td style=\"text-align: center\">8.625&#8243;<\/td>\n<td style=\"text-align: center\">4.20&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">2-1\/4&#8243;, 2-1\/2&#8243;<\/td>\n<td style=\"text-align: center\">4-1\/4&#8243;, 4-1\/2&#8243;, 4-3\/4&#8243;, 5&#8243;<\/td>\n<td style=\"text-align: center\">9.25&#8243;<\/td>\n<td style=\"text-align: center\">4.20&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">2-3\/4&#8243;, 3&#8243;<\/td>\n<td style=\"text-align: center\">4&#8243;, 4-1\/4&#8243;, 4-1\/2&#8243;, 4-3\/4&#8243;, 5&#8243;<\/td>\n<td style=\"text-align: center\">9.125&#8243; &#8211; 9.313&#8243;<\/td>\n<td style=\"text-align: center\">5&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">2-3\/4&#8243;, 3&#8243;<\/td>\n<td style=\"text-align: center\">5-1\/4&#8243;, 5-1\/2&#8243;, 5-3\/4&#8243;, 6&#8243;<\/td>\n<td style=\"text-align: center\">9.25&#8243; &#8211; 9.438&#8243;<\/td>\n<td style=\"text-align: center\">5&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">3-1\/4&#8243;, 3-1\/2&#8243;, 3-5\/8&#8243;, 3-3\/4&#8243;<\/td>\n<td style=\"text-align: center\">4-1\/2&#8243;, 4-3\/4&#8243;, 5&#8243;, 5-1\/4&#8243;, 5-1\/2&#8243;, 5-3\/4&#8243;, 6&#8243;<\/td>\n<td style=\"text-align: center\">9.675&#8243; &#8211; 9.863&#8243;<\/td>\n<td style=\"text-align: center\">6&#8243;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"table table-striped\" width=\"100%\">\n<caption>\n<h4>Metric (mm)<\/h4>\n<\/caption>\n<tbody>\n<tr>\n<td style=\"text-align: center\"><strong>Shaft Diameter (A)<\/strong><\/td>\n<td style=\"text-align: center\"><strong>Stern Tube Diameter (B)<\/strong><\/td>\n<td style=\"text-align: center\"><strong>Approx Compressed Length (C)<\/strong><\/td>\n<td style=\"text-align: center\"><strong>D<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">20, 22, 25, 28, 30<\/td>\n<td style=\"text-align: center\">30, 40, 45, 50, 60<\/td>\n<td style=\"text-align: center\">152 &#8211; 156<\/td>\n<td style=\"text-align: center\">61<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">20, 22, 25, 28, 30<\/td>\n<td style=\"text-align: center\">65<\/td>\n<td style=\"text-align: center\">168<\/td>\n<td style=\"text-align: center\">61<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">32, 35<\/td>\n<td style=\"text-align: center\">45, 50, 60, 65<\/td>\n<td style=\"text-align: center\">168 &#8211; 172<\/td>\n<td style=\"text-align: center\">73<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">32, 35<\/td>\n<td style=\"text-align: center\">70, 80, 85, 90<\/td>\n<td style=\"text-align: center\">206 &#8211; 211<\/td>\n<td style=\"text-align: center\">73<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">38, 40, 45, 50, 55<\/td>\n<td style=\"text-align: center\">50, 60, 65, 70, 75, 80, 85, 90<\/td>\n<td style=\"text-align: center\">203 &#8211; 209<\/td>\n<td style=\"text-align: center\">96<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">38, 40, 45, 50, 55<\/td>\n<td style=\"text-align: center\">95, 100<\/td>\n<td style=\"text-align: center\">213<\/td>\n<td style=\"text-align: center\">96<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">60, 65<\/td>\n<td style=\"text-align: center\">85, 90, 95, 100<\/td>\n<td style=\"text-align: center\">219 &#8211; 224<\/td>\n<td style=\"text-align: center\">107<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">60, 65<\/td>\n<td style=\"text-align: center\">110, 115, 120, 125<\/td>\n<td style=\"text-align: center\">235<\/td>\n<td style=\"text-align: center\">107<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">70, 75, 80<\/td>\n<td style=\"text-align: center\">100, 110, 115, 120, 125<\/td>\n<td style=\"text-align: center\">231 &#8211; 237<\/td>\n<td style=\"text-align: center\">127<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">70, 75, 80<\/td>\n<td style=\"text-align: center\">135, 140, 145, 150<\/td>\n<td style=\"text-align: center\">235 &#8211; 240<\/td>\n<td style=\"text-align: center\">127<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">85, 90, 95<\/td>\n<td style=\"text-align: center\">115, 120, 125, 130, 135, 140, 145, 150<\/td>\n<td style=\"text-align: center\">245 &#8211; 250<\/td>\n<td style=\"text-align: center\">153<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><strong><em>For 20mm to 95mm (3\/4&#8243; to 3-3\/4&#8243;) shaft diameter <a href=\"#size-chart-pss-a\">(Compression Chart)<\/a><\/em><\/strong><br \/>\nUse the selector below to find the correct PSS Shaft Seal for you. You will need to know your shaft diameter and the outside diameter of your stern tube <em>(shaft log)<\/em>.<\/p>\n","protected":false},"featured_media":10147,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[],"product_cat":[834],"product_tag":[2940,2917,3026,3025,2895,2892,2918,3069,2919,2896,2894,2916,2915,2893],"class_list":{"0":"post-10430","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pss-shaft-seal","7":"product_tag-bellow-the-deck-of-the-boat","8":"product_tag-engine","9":"product_tag-fishing","10":"product_tag-industry","11":"product_tag-marine-en","12":"product_tag-mechanical-seal","13":"product_tag-propulsion-en","14":"product_tag-protection-en","15":"product_tag-safety","16":"product_tag-sailing","17":"product_tag-sealing","18":"product_tag-shaft-line","19":"product_tag-shaft-seal","20":"product_tag-stuffing-box","21":"product_shipping_class-standard","22":"pa_shaft-diameter-4088","23":"pa_shaft-diameter-4092","24":"pa_shaft-diameter-4090","25":"pa_shaft-diameter-4089","26":"pa_shaft-diameter-4093","27":"pa_shaft-diameter-4091","28":"pa_shaft-diameter-4094","29":"pa_shaft-diameter-4096","30":"pa_shaft-diameter-4095","31":"pa_shaft-diameter-4097","32":"pa_shaft-diameter-20mm","33":"pa_shaft-diameter-22mm","34":"pa_shaft-diameter-25mm","35":"pa_shaft-diameter-28mm","36":"pa_shaft-diameter-4098","37":"pa_shaft-diameter-4100","38":"pa_shaft-diameter-4099","39":"pa_shaft-diameter-4102","40":"pa_shaft-diameter-4101","41":"pa_shaft-diameter-4086","42":"pa_shaft-diameter-30mm","43":"pa_shaft-diameter-32mm","44":"pa_shaft-diameter-35mm","45":"pa_shaft-diameter-38mm","46":"pa_shaft-diameter-40mm","47":"pa_shaft-diameter-45mm","48":"pa_shaft-diameter-50mm","49":"pa_shaft-diameter-55mm","50":"pa_shaft-diameter-60mm","51":"pa_shaft-diameter-65mm","52":"pa_shaft-diameter-4087","53":"pa_shaft-diameter-70mm","54":"pa_shaft-diameter-75mm","55":"pa_shaft-diameter-80mm","56":"pa_shaft-diameter-85mm","57":"pa_shaft-diameter-90mm","58":"pa_shaft-diameter-95mm","59":"pa_stern-tube-diameter-102mm-4","60":"pa_stern-tube-diameter-108mm-4-1-4","61":"pa_stern-tube-diameter-114mm-4-1-2","62":"pa_stern-tube-diameter-121mm-4-3-4","63":"pa_stern-tube-diameter-127mm-5","64":"pa_stern-tube-diameter-133mm-5-1-4","65":"pa_stern-tube-diameter-140mm-5-1-2","66":"pa_stern-tube-diameter-146mm-5-3-4","67":"pa_stern-tube-diameter-152mm-6","68":"pa_stern-tube-diameter-32mm-1-1-4","69":"pa_stern-tube-diameter-38mm-1-1-2","70":"pa_stern-tube-diameter-45mm-1-3-4","71":"pa_stern-tube-diameter-50mm-2","72":"pa_stern-tube-diameter-57mm-2-1-4","73":"pa_stern-tube-diameter-64mm-2-1-2","74":"pa_stern-tube-diameter-70mm-2-3-4","75":"pa_stern-tube-diameter-76mm-3","76":"pa_stern-tube-diameter-83mm-3-1-4","77":"pa_stern-tube-diameter-89mm-3-1-2","78":"pa_stern-tube-diameter-95mm-3-3-4","80":"first","81":"instock","82":"taxable","83":"shipping-taxable","84":"purchasable","85":"product-type-variable","86":"prodpage-style2"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>PSS Type A seal - Seaview Progress<\/title>\n<meta name=\"description\" content=\"For 20mm to 95mm (3\/4&quot; to 3-3\/4&quot;) shaft diameter (Compression Chart) Use the selector below to find the correct PSS Shaft Seal for you. 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