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NSN 5331-01-287-4819, 5331012874819
O-RING

Federal Supply Classification
FSC 5331 - O-Ring
National Item Identification Number
NIIN 012874819
Codification Country
United States
Item Name Code
INC 47946
Criticality
(Y) This item does not have a nuclear hardened feature but does have other critical feature(s) 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 5331-01-287-4819

National Stock Number (NSN) 5331-01-287-4819, or NIIN 012874819, (o-ring) was assigned October 22, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 7 manufacturer part numbers associated with this NSN. 2 of those 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, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over a year. There have been 4 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L121V3920, SPE7L120V3934, SPE7L120V3545, SPM5M211M3031, SPM5M211M3031. The total value of the awarded contracts has been US$ 2,229.75.

This NSN is fairly common among different weapons systems, belonging to 18 different platforms.

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 05, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 47946. [A NONMETALLIC CIRCULAR ITEM WITH AN APERATURE, HAVING A SOLID ROUND CROSS-SECTION. THEY ARE USED PRIMARILY FOR SEALING. FOR ITEMS WITH OTHER THAN ROUND CROSS SECTION, SEE PACKING,PREFORMED. FOR NONCIRCULAR ITEMS WITH A ROUND CROSS-SECTION, SEE SEAL,NONMETALLIC ROUND SECTION AND RUBBER,ROUND SECTION.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 5331012874819 does not contain precious metals.

This information was last updated on .


Technical Characteristics

CENTER HOLE DIAMETER
(ADYT) 2.290 INCHES MINIMUM AND 2.310 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATION
(CRTL) ZZZW
CROSS-SECTIONAL HEIGHT
(ADVN) 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM
DEPARTURE FROM CITED DOCUMENT
(ZZZW) REQUIRES SPECIAL CLEANING AND PACKAGING IAW MIL-STD-1330,FOR 0XYGEN/NITROGEN/HYDROGEN SERVICE

Manufacturer Part Numbers


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MS28775-141
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MS28775-141
5331-01-287-4819
Condition NE
O-Ring - Inner
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