National Item Identification Number

01-311-0890
013110890
5305-01-311-0890
5305013110890

National Stock Number

Item Name

SCREW,CAP,HEXAGON HEAD

Federal Supply Class

5305

Description

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Commercial and Government Entity Code (Supplier Data)

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03950

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NAVAL INVENTORY CONTROL POINT
MECHANICSBURG
5450 CARLISLE PIKE
2020
MECHANICSBURG
PA
17055
717-605-3500

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Reference Numbers (Part Numbers)

MIL-S-1222
000.500-13UNC-3AX1.750
250-4775630PC4

Required Categories

SPECIAL FEATURES
DEPARTURE FROM CITED DOCUMENT
CRITICALITY CODE JUSTIFICATION;

Required Description

MATERIAL PHOSPHATE COATING HEAVY MANGANESE OR ZINC BASE FOR FERROUS METALS SIZE