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National Stock Number:
5305-01-375-2857
Federal Supply Class:
5305
National Item Identification Number:
013752857
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:
| 5597762-2 | 38597 | LOCKHEED MARTIN CORPORATION | | 5597762-2 | 39845 | SUMATECH INC | | 5597762-2 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 5.000 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 5.780 INCHES NOMINAL | | FASTENER LENGTH | 11.890 INCHES NOMINAL | | MATERIAL | STEEL COMP 4140 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | SPADE | | HEAD HEIGHT | 1.000 INCHES NOMINAL | | HEAD LENGTH | 0.812 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.229 INCHES MINIMUM AND | | 0.239 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | TORQUE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.812 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 3.940 INCHES NOMINAL FIRST SHOULDER | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | SPECIAL FEATURES | 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. KEYWAY LG 1.120 IN.,; HOLE IN HEAD 0.315-0.321 IN. DIA |
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