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NSN 4730-00-398-6894, 4730003986894
LOCKNUT,TUBE FITTING

Federal Supply Classification
FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number
NIIN 003986894
Codification Country
United States
Item Name Code
INC 17645
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 4730-00-398-6894

National Stock Number (NSN) 4730-00-398-6894, or NIIN 003986894, (locknut,tube fitting) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 17645. [AN ITEM WITH INTERNAL MACHINE THREADS DESIGNED TO FIT THE EXTERNAL MACHINE THREADS OF A TUBE FITTING. IT HAS FLAT FACES, ONE OF WHICH HAS A COUNTERBORED RECESS TO ACCOMMODATE PACKING, PACKING OR SEALING RING(S), GASKET(S), AND THE LIKE. THE ITEM, WHEN INSTALLED, PROVIDES A METHOD OF LOCKING AND SEALING THE CONNECTION. SEE ALSO LOCKNUT, PIPE; NUT (1), TUBE COUPLING AND NUT (1), PLAIN, HEXAGON.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730003986894 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

NOMINAL THREAD SIZE
(CQJX) 2.250 INCHES
NOMINAL TUBE OUTSIDE DIAMETER
(CQRJ) 1.750 INCHES
NUT STYLE
(ACTA) TUBE FITTING LOCKNUT
PACKING RECESS DEPTH
(CFPW) 0.438 INCHES NOMINAL
PACKING RECESS DIAMETER
(CFPT) 0.885 INCHES NOMINAL
MATERIAL
(MATT) COPPER ALLOY OVERALL
THREAD CLASS
(AAJD) 2B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD SERIES
(BZRR) UN
THREAD QUANTITY PER INCH
(CMLP) 12
WIDTH ACROSS FLATS
(ASDB) 2.500 INCHES NOMINAL

Manufacturer Part Numbers


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