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National Stock Number:
5305-00-151-8660
Federal Supply Class:
5305
National Item Identification Number:
001518660
Description:
SCREW,SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 2R1465-13 | 03481 | BFGOODRICH CO THE AEROSPACE DIV ENGINEERED POLYMER PRODUCTS | | 2R1863-921 | 1FY45 | AERO MECHANICAL FASTENING SYSTEMS INC | | BM19070-4-921 | 17446 | HUCK INTERNATIONAL, INC | | BM19070-4-921 | 97928 | HUCK INTL INC | | BM19070-921 | 17446 | HUCK INTERNATIONAL, INC | | BM19070-921 | 97928 | HUCK INTL INC | | GS551P-4921 | 1FY45 | AERO MECHANICAL FASTENING SYSTEMS INC | | GS551P-4921 | 58845 | ABOUNDING SECURITY INC DIV OF MAA CORP | | GS551P4-921 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | HP6551P4-921 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | MA6551P4-921 | 58845 | ABOUNDING SECURITY INC DIV OF MAA CORP | | PBF1286-921 | 27624 | SPS TECHNOLOGIES LLC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES NOMINAL | | FASTENER LENGTH | 1.266 INCHES MINIMUM AND 1.296 INCHES MAXIMUM | | HEAD DIAMETER | 0.357 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL COMP 4037 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.254 INCHES MINIMUM AND 0.256 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.796 INCHES MINIMUM AND 0.826 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | HALF OF TOP SURFACE OF HEAD PAINTED ORANGE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.406 INCHES MINIMUM AND 0.436 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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