Product Details | MACHINE SCREW

5305-00-271-5381 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Part Alternates: 5305-00-271-5381, 00-271-5381, 5305002715381, 002715381

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 00-271-5381

Drawings & Photos | NSN 5305-00-271-5381


Cross Reference | NSN 5305-00-271-5381

Part Number Cage Code Manufacturer
FF-S-92B TY1 ST4S 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
FFS92TYPE1STYLE4S 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5305-00-271-5381

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.500 INCHES
THREAD QUANTITY PER INCH 13
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.938 INCHES MINIMUM
FASTENER LENGTH 1.250 INCHES NOMINAL
SCREW MATERIAL STEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OR STEEL COMP 1211 OR STEEL COMP 1212 OR STEEL COMP 1213
SCREW MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-637 FED SPEC ALL MATERIAL RESPONSES
HEAD STYLE A33 FILLISTER
HEAD DIAMETER 0.731 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD HEIGHT 0.301 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
INTERNAL DRIVE STYLE B1 CROSS RECESS TYPE 1

Restrictions/Controls & Freight Information | NSN 5305-00-271-5381

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Category Code Description
No Freight Information