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National Stock Number:
5305-01-221-3152
Federal Supply Class:
5305
National Item Identification Number:
012213152
Description:
SCREW,MACHINE
Detail:
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.
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Manufacturer Information:
| 1-72UNF3A-7-16 | 97852 | STAR STAINLESS SCREW CO | | 511288-3 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
| FASTENER LENGTH | 0.438 INCHES NOMINAL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PROPRIETARY CHARACTERISTICS | MRCS | | NOMINAL THREAD DIAMETER | 0.073 INCHES | | SCREW MATERIAL | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.410 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 72 | | THREAD SERIES DESIGNATOR | UNF |
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