National Item Identification Number

01-406-5523
014065523
5305-01-406-5523
5305014065523

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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80204

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17454

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PHILADELPHIA GEAR CORPORATION
DBA WESTERN GEAR DIV CORPORATE
901 EAST 8TH STREET
SUITE 100
KING OF PRUSSIA
PA
19406
610-337-5607

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90099

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NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA NORTHROP GRUMMAN MARINE SYSTEMS
401 E HENDY AVE MS 33-3
SUNNYVALE
CA
94086
408-735-4188

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17454

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PHILADELPHIA GEAR CORPORATION
DBA WESTERN GEAR DIV CORPORATE
901 EAST 8TH STREET
SUITE 100
KING OF PRUSSIA
PA
19406
610-337-5607

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Reference Numbers (Part Numbers)

MIL-S-1222
0.25020UNC2A0.500T1G5SEA
0.25020UNC2A0.500T1G5SEA
01070-0281ITEM4-

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNC
0.250 INCHES
20
2A
RIGHT-HAND
0.500 INCHES NOMINAL
0.500 INCHES NOMINA