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NSN 4730-01-052-3768, 4730010523768
COUPLING HALF,SELF-SEALING

Federal Supply Classification
FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number
NIIN 010523768
Codification Country
United States
Item Name Code
INC 18281
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 4730-01-052-3768

National Stock Number (NSN) 4730-01-052-3768, or NIIN 010523768, (coupling half,self-sealing) was assigned December 14, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 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 7 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 7 contracts issued for this part number, with 7 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M324V0697, SPE7M318V5943, SPE7M318P1479, SPE7M314V7024, SPM7M313V1346. The total value of the awarded contracts has been US$ 31,407.21.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

There has been a small amount of 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 May 23, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 18281. [A FLUID LINE FITTING HAVING A PIPE, TUBE OR HOSE CONNECTION OR A THROUGH HOLE TO ACCOMMODATE A BOLT, FLUID PASSAGE ON ONE END. THE OTHER END MUST HAVE AN EXTERNAL OR INTERNAL THREAD FOR CONNECTING A MATING PART TO FORM A SELF-SEALING COUPLING ASSEMBLY. THE FITTING HAS EITHER A SELF-SEALING FEATURE FOR THE PURPOSE OF AUTOMATICALLY SHUTTING OFF THE FLOW OF FLUID WHEN DISCONNECTED FROM ITS MATING HALF, OR, IF IT HAS NO SELF-SEALING FEATURE, IS SPECIFICALLY DESIGNED TO MATE WITH A FITTING WITH A SELF-SEALING FEATURE. FOR SELF-SEALING FITTINGS WITH A QUICK DISCONNECT END, SEE COUPLING HALF, QUICK DISCONNECT. FOR FLUID LINE FITTINGS WITHOUT A SELF-SEALING FEATURE, SEE COUPLING (AS MODIFIED).]. 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 4730010523768 does not contain precious metals.

This NSN is associated to Schedule B 7609000000: aluminum tube or pipe fittings (couplings,elbows sleeves). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.

This information was last updated on .


Technical Characteristics

CONNECTION STYLE
(AHNC) FLARED ALL ENDS
CONNECTION TYPE
(AWLS) THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
FEATURES PROVIDED
(CBBL) SELF-SEALING
OVERALL LENGTH
(ABHP) 1.853 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL
(MATT) ALUMINUM ALLOY BODY
MAXIMUM OPERATING TEMP
(AEHZ) 47.0 DEG CELSIUS SINGLE RESPONSE
NOMINAL THREAD SIZE
(CQJX) 0.500 INCHES ALL ENDS
SEAT ANGLE
(CQRB) 37.0 DEGREES ALL ENDS
STYLE DESIGNATOR
(STYL) MALE COUPLING HALF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENT
(SFTT) ANODIZE BODY
THREAD CLASS
(AAJD) 3A ALL ENDS
THREAD SERIES DESIGNATOR
(THSD) UNJF ALL ENDS

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