National Item Identification Number

01-250-2190
012502190
5305-01-250-2190
5305012502190

National Stock Number

Item Name

SCREW,CAP,SOCKET HEAD

Federal Supply Class

5305

Description

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Commercial and Government Entity Code (Supplier Data)

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NSN (National Stock Number) 5305-01-250-2190, 5305012502190 NIIN (National Identification Number) 01-250-2190, 012502190

Part Numbers (Reference Numbers)

NAS1191-4P-10L

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNJF
0.250 INCHES
28
3A
RIGHT-HAND
0.523 INCHES MINIMUM AND
0.625 INCHES M