# NSN 5331-00-450-7972: O-Ring

NSN 5331-00-450-7972 (also written 5331004507972; NIIN 00-450-7972) is an o-ring in Federal Supply Class 5331, O-Rings. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5331-00-450-7972 (5331004507972)
- NIIN: 00-450-7972 (004507972)
- Item name: O-RING
- Federal Supply Class: [FSC 5331 O-Rings](https://nsnexplorer.com/fsc/5331/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-11-06)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASSN STD SINGLE MATERIAL RESPONSE A-S 3357 |
| MATT | MATERIAL | RUBBER SILICONE CLASS Q |
| ADVN | CROSS-SECTIONAL HEIGHT | INCHES MINIMUM 0.144 AND INCHES MAXIMUM 0.152 |
| CQFM | HARDNESS RATING | SHORE DUROMETER A MINIMUM 70.0 AND SHORE DUROMETER A MAXIMUM 80.0 |
| ABJH | TEMP RATING | FAHRENHEIT -85.0 AND FAHRENHEIT 500.0 |
| ADYT | CENTER HOLE DIAMETER | INCHES MINIMUM 2.844 AND INCHES MAXIMUM 2.874 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 657802 | 52661 | RTX CORPORATION DIV PRATT & WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 657802 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331004507972&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331004507972
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/5331-00-450-7972/
JSON: https://nsnexplorer.com/api/nsn/5331-00-450-7972.json