b'NO. QTY DRAWING NO. PART NO. MATERIAL DESCRIPTION1 1 H-43652 - 6061-T6 AL SHEAVE2 1 H-39829A REX-0008- COMPOSITE REXNORD (701-00008-016)0163 36 H-22561A MP-125 TORLON 4203 5/32" TORLON BALL (MP125)4 1 H-90447 - 6061-T6 AL FIXED SIDEPLATE5 1 H-7037A HCP374 CLEAR POLYESTER3/8" MYLAR WASHER(0.007 THICK )6 3 H-65860 HFS214 18-8 SS 1/4 x 5/8" FW7 1 H-14801A HCP644 CLEAR POLYESTER1/4" MYLAR WASHER(0.007 THICK )8 1 H-90448 - 6061-T6 AL OPENING SIDEPLATE9 1 H-89580 17-4PH SS CONDSHEAVE AXLE102510 1 H-89601 - 304 SS SMALLEY RING VH-3111 1 H-89582 - 316 SS BUTTON12 1 H-88533 - 302 SS SPRING STEELSPRING-.250DX.026WIREX.5IN PELLETHANE 2103- COMP 302 SS13 1 H-90449 - 80WC -14 1 H-90450 - Material 15 1 H-89180 - 316 SS HEAD THIMBLE16 1 H-37828A HFS120 18-8 SS 1/4-20 THIN NYLOCK NUT17 2 H-90091 - 316 SS ANTI-CAPSIZE BAR18 2 H-35327A HFS917 18-8 SS M4 X .7 X 10mm SK BUTNEW 34051-Ton Twing Block This new big-boat, side-opening twing block is1 2designed to be opened and closed one-handed using the radiused thumb button set in the sideplate above14the sheave bearing. That button is partially recessedA3to protect against inadvertent opening.Rigging a twing line is generally accomplished to leeward while10leaning overboard to access the tensioned sheet. To help add crew safety, the button is spring-loaded so opening and rigging the block becomes a true one-6handed operation.The block is made of aluminum with Torlon bearing balls running in curved races recessed within the anodized sheave. Sideplates are anodized and rubber-armored to protect block, deck, and topsides. The 9block is designed so it may be rigged 2:1 for easier up/down adjustment under load. A horizontal pin11separates mounting line from sheet to prevent the block from capsizing. It may also be attached with a fixed loop to a padeye or loop spliced and 12run directly to a fairlead and cleat. The block accommodates up to 11 mm diameter line.81318 ASSEMBLE WITH BLUE LOCTITE417156 16A1-Ton5 SECTION A-A 7 3405 6TWING BLOCK 12 Part No. 1 " in Length 78 oz Weight g Max line Maximum Breaking load INCORPORATED DIMENSIONS IN OVALS ARE KEY MATERIAL:VARIOUS ASSEMBLY DRAWING NUMBER REV.Matching leech profile on todays triple-headed sail plans makes this new twing block an important offering offshore. Designing it to be safely rigged with one hand so crewmembers have the other hand for safety is even more important.Sheaveworking loadDescription in mm mm in mm lb kg lb kg3405-Ton Twing block 1 1/2 38.5 3.01.4 125 .43 11 2205 1000 4409 2000PRODUCT CHARACTERISTICS BLOCK-1T TWING H-90446 0UNLESS OTHERWISE SPECIFIED:- DIMENSIONS IN INCHES PART # 3405- ALL DIMENSIONS PRIOR TO FINISHINGN15 W24983 Bluemound Road - REMOVE ALL BURRS AND BREAK SHARPFINISH: - SHEET NUMBER: 1/1 SCALE: 1:1EDGES WITH 0.010 MAX RADIUS OR Pewaukee, Wisconsin 53072 CHAMFERThe designs, constructions, arrangements, disclosures and devicesDESIGN BY : ORLY DATE: 7/31/2023Tel: 262-691-3320 TOLERANCES UNLESS OTHERWISE SPECIFIED: illustrated in presentations bearing this note are the property of Harken, Inc,DRAWN BY : ORLY DATE: 10/27/2022Fax: 262-691-3807 Pewaukee, WI and are submitted in confidence with the understanding DECIMAL: that such material shall not be utilized in any way by any party without priorENG. APR : - DATE: www.harken.com ANGULAR: SURFACE FINISH: written consent from Harken, Inc. MFG. APR : - DATE: -'