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National Stock Number:
5306-00-022-8085
Federal Supply Class:
5306
National Item Identification Number:
000228085
Description:
BOLT,RIBBED SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.
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Manufacturer Information:
| 494927 | 11449 | TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP | | 494927 | 1A249 | ACCURATE THREADED PRODUCTS COMPANY THE | | 494927 | 77445 | RTX CORPORATION | | 494927 | 8M938 | PRO/DES INC PRODUCTS DESIGN DIV | | 494927 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 494927 | J1695 | KITO MFG CO. LTD | | 494927 | S0254 | KITO MFG CO. LTD |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.490 INCHES MINIMUM AND | | 0.570 INCHES MAXIMUM | | FASTENER LENGTH | 1.640 INCHES MINIMUM AND | | 1.660 INCHES MAXIMUM | | MATERIAL | STEEL COMP 8740 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | FLAT EXTENDED WASHER | | HEAD DIAMETER | 0.880 INCHES MINIMUM AND | | 0.900 INCHES MAXIMUM | | HEAD HEIGHT | 0.115 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.450 INCHES MINIMUM AND | | 0.470 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.010 INCHES MINIMUM AND | | 0.015 INCHES MAXIMUM | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | RIBBED SECOND SHOULDER | | SHOULDER DIAMETER | 0.285 INCHES MINIMUM AND | | 0.295 INCHES MAXIMUM FIRST SHOULDER | | 0.279 INCHES MINIMUM AND | | 0.281 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER LENGTH | 0.060 INCHES NOMINAL FIRST SHOULDER | | 0.340 INCHES NOMINAL SECOND SHOULDER | | RIB QUANTITY | 35 | | RIB MAJOR DIAMETER | 0.279 INCHES MINIMUM AND | | 0.281 INCHES MAXIMUM | | RIB LENGTH | 0.340 INCHES NOMINAL | | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.240 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | RIB INCLUDED ANGLE | 45.0 DEGREES NOMINAL | | RIB MINOR DIAMETER | 0.260 INCHES MINIMUM AND | | 0.266 INCHES MAXIMUM |
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