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National Stock Number:
5305-01-470-9303
Federal Supply Class:
5305
National Item Identification Number:
014709303
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:
| 167-8219058 ITEM 6 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 167-8278260 PC 6 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 90298A583 | 39428 | MCMASTER-CARR SUPPLY CO | | 167-8278261 PC 7 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 167-8450329 ITEM NO 32 | 53711 | NAVAL SEA SYSTEMS COMMAND | | MS51576 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS51576-29 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 1.4063 INCHES MINIMUM AND 1.4687 INCHES MAXIMUM | | HEAD DIAMETER | 0.4688 INCHES MINIMUM AND 0.5312 INCHES MAXIMUM | | HEAD HEIGHT | 0.1875 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582/582M ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP XM-7 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.997 INCHES MINIMUM AND 1.003 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIFICATION/STANDARD DATA | 96906-MIL-S-51576 GOVERNMENT SPECIFICATION | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TYPE II, TYPE VI OR VII FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD LENGTH | 0.4063 INCHES MINIMUM AND 0.4687 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC | | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL |
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