NSN 5331-01-213-8345, 5331012138345
O-RING

Federal Supply Classification: FSC 5331 - O-Ring
National Item Identification Number: NIIN 012138345
Codification Country: United States
Item Name Code: INC 47946
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 5331-01-213-8345

National Stock Number (NSN) 5331-01-213-8345, or NIIN 012138345, (o-ring) was assigned September 18, 1997 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. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 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 a strong supply network for this NSN, with 12 sources of supply.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Dec 04, 2018. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE5EJ19V1498, SPE5EJ19V0954, SPE5EJ16M1631, SPE5EJ16V4273, SPE5EJ14V5419. The total value of the awarded contracts has been US$ 5,728.02.

This NSN is fairly common among different weapons systems, belonging to 16 different platforms.

There has been a small amount of demand for this national stock number. Globally, demand for this NSN has originated from 8 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 27, 2016, 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 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 5331012138345 does not contain precious metals.

This information was last updated on Apr 01, 2025.

Technical Characteristics

CROSS-SECTIONAL SHAPE STYLE: (AAGR) O-RING
TEMP RATING: (ABJH) -65.0 DEG FAHRENHEIT AND 275.0 DEG FAHRENHEIT
ELONGATION PERCENTAGE: (ANYN) 160 MAXIMUM
CENTER HOLE DIAMETER: (ADYT) 0.544 INCHES MINIMUM AND 0.554 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT: (ADVN) 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM
DEPARTURE FROM CITED DOCUMENT: (ZZZW) AS MODIFIED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL: (MATT) RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
PERIPHERAL DIAMETER: (ADYU) 0.755 INCHES NOMINAL
SPECIAL FEATURES: (FEAT) CERTIFIED FREE FROM MERCURY CONTAMINATION
SPECIAL TEST FEATURES: (SPCL) SPECIAL QUALITY CONTROL TESTING
TEMP RATING: (ABJH) -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT
TEST DATA DOCUMENT: (TEST) 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).