National Item Identification Number

00-821-3878
008213878
4730-00-821-3878
4730008213878

National Stock Number

Item Name

NUT,TUBE COUPLING

Federal Supply Class

4730

Referenced on: http://automotiveenginemechanics.tpub.com//TM-1-2840-238-23P/TM-1-2840-238-23P0067.htm
Referenced on: http://automotiveenginemechanics.tpub.com//TM-1-2840-238-23P/TM-1-2840-238-23P0088.htm
Referenced on: http://automotiveenginemechanics.tpub.com//TM-1-2840-238-23P/TM-1-2840-238-23P0108.htm
Referenced on: http://automotiveenginemechanics.tpub.com//TM-1-2840-238-23P/TM-1-2840-238-23P0234.htm
Referenced on: http://www.tpub.com/content/aviationmaintandmisc/TM-1-2840-248-23P/css/TM-1-2840-248-23P_220.htm
Referenced on: http://www.tpub.com/content/aviationmaintandmisc/TM-1-2840-248-23P/css/TM-1-2840-248-23P_79.htm

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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07482

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24446

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Reference Numbers (Part Numbers)

R197P04
R197P04

Required Categories

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

Required Description

UNF
0.438 INCHES
20
3B
RIGHT-HAND
STEEL COMP 303 OR
STEEL COMP 303SE OR
S