National Item Identification Number

00-540-6297
005406297
4730-00-540-6297
4730005406297

National Stock Number

Item Name

NUT,TUBE COUPLING

Federal Supply Class

4730

Description

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes NUT (1), TUBE COUPLING, REDUCING; and NUT (1), UNION.

Commercial and Government Entity Code (Supplier Data)

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30974

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Reference Numbers (Part Numbers)

NAS596-20
NAS596-20
NAS597

Required Categories

THREAD SERIES
NOMINAL THREAD SIZE
THREAD QUANTITY PER INCH
THREAD CLASS
THRE

Required Description

UN
1.625 INCHES
12
3B
RIGHT-HAND
STEEL COMP 431 OVERALL
MIL-S-18732,TYPE 4