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NSN 4730-01-350-3644, 4730013503644
LOCKNUT,TUBE FITTING

Federal Supply Classification
FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number
NIIN 013503644
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4730-01-350-3644

National Stock Number (NSN) 4730-01-350-3644, or NIIN 013503644, (locknut,tube fitting) was assigned December 14, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 6 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 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over a year. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M322V0635, SPE7M419V0960. The total value of the awarded contracts has been US$ 687.75.

This NSN is unique to one weapons system.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 31, 2018, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

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 4730013503644 does not contain precious metals.

This information was last updated on .


Technical Characteristics

PACKING RECESS DIAMETER
(CFPT) ANY ACCEPTABLE
MATERIAL
(MATT) TITANIUM ALLOY OVERALL
NOMINAL THREAD SIZE
(CQJX) 0.843 INCHES
NOMINAL TUBE OUTSIDE DIAMETER
(CQRJ) 0.625 INCHES
NUT HEIGHT
(ADEA) 0.278 INCHES NOMINAL
NUT STYLE
(ACTA) TUBE FITTING LOCKNUT
SPECIAL FEATURES
(FEAT) DYNATUBE FITTING AND 3 LOCKWIRE HOLES
WIDTH ACROSS FLATS
(ASDB) 1.125 INCHES NOMINAL
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD CLASS
(AAJD) 3B
THREAD SERIES
(BZRR) UNJS
THREAD QUANTITY PER INCH
(CMLP) 18
PACKING RECESS DEPTH
(CFPW) ANY ACCEPTABLE

Manufacturer Part Numbers


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