# NSN 5331-01-581-0447: O-Ring Kit

NSN 5331-01-581-0447 (also written 5331015810447; NIIN 01-581-0447) is an o-ring kit in Federal Supply Class 5331, O-Rings. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5331-01-581-0447 (5331015810447)
- NIIN: 01-581-0447 (015810447)
- Item name: O-RING KIT
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | THE KIT CONSIST OF: 7086-0920 O-RING, INLET (QTY.1) X 7086-0120 O-RING,LARGE POPPET (QTY.2) X 7086-0018 O-RING,SMALL POPPET (QTY.2) // THE KIT IS USE TO REPLACE O-RINGS ON HFC227-BC AND DRY CHEMICAL VALVE ASSEMBLIES |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | REPLACEMENT O-RING KIT FOR HFC227-BC & DRY CHEMICAL VALVE ASSEMBLIES |
| AGAV | END ITEM IDENTIFICATION | 2320-01-437-6957 ARMORED SECURITY VEHICLE (ASV) |
| FEAT | SPECIAL FEATURES | PART OF: 4210-01-575-1671 RETROFIT KIT,AUTOMATIC FIRE EXTINGUISHING SYSTEM (AFES) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 423517 | 05BU0 | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-19 | [SPE4AX18D9409/SPE4A626F368A](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331015810447) | O-RING KIT | KIDDE TECHNOLOGIES, INC DIV KIDDE AEROSPACE AND DEFENSE | $26,822.07 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5331015810447&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5331015810447
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/5331-01-581-0447/
JSON: https://nsnexplorer.com/api/nsn/5331-01-581-0447.json