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National Stock Number:
5305-01-282-7502
Federal Supply Class:
5305
National Item Identification Number:
012827502
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:
| 5597762-1 | 38597 | LOCKHEED MARTIN CORPORATION | | 5597762-1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 11.890 INCHES NOMINAL | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | HEAD HEIGHT | 1.000 INCHES NOMINAL | | HEAD LENGTH | 0.812 INCHES NOMINAL | | HEAD STYLE | SPADE | | INTERNAL DRIVE STYLE | TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SHOULDER DIAMETER | 0.812 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 3.940 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | SOLID FILM LUBRICANT ON THREADS AND SHOULDER; THREADS ON POINTED END 0.250-28UNF-2A; THREAD RELIEF 0.060 IN. LG. SHOULDER OVER POINT 0.433-0.435 IN. DIA.; 1.500 IN. LG WITH KEYWAY LG 1.120 IN.; HOLE IN HEAD 0.315-0.321 IN. DIA | | WIDTH BETWEEN FLATS | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-24441/1 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-24441/2 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-P-2444/3 MIL SPEC SINGLE TREATMENT RESPONSE FIRST SHOULDER | | SURFACE TREATMENT | PAINT FIRST SHOULDER | | THREAD CLASS | 2A | | THREAD DIRECTION | LEFT-HAND | | THREAD LENGTH | 5.780 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 20 |
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