# NSN 4240-01-221-0391: Kit, Inlet Valve Repair

NSN 4240-01-221-0391 (also written 4240012210391; NIIN 01-221-0391) is a kit, inlet valve repair in Federal Supply Class 4240, Safety and Rescue Equipment. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4240-01-221-0391 (4240012210391)
- NIIN: 01-221-0391 (012210391)
- Item name: KIT,INLET VALVE REPAIR
- Federal Supply Class: [FSC 4240 Safety and Rescue Equipment](https://nsnexplorer.com/fsc/4240/)
- Federal Supply Group: [FSG 42](https://nsnexplorer.com/group/42/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | POLYTETRAFLUOROETHYLENE WASHER,PN 5-1-1377; CUP SEAL,PN 5-1-1353; O-RINGS,PNS 5-1-131,9-1 AND -2; E-RING,PN MS16633-4017;INLET VALVE DISK,PN 5-1-1366; CHECK VALVE,PN 5-1-1403;WASHER,THRUST,PN 5-1-1451; RETAINING RINGS,PNS MS16624-4025 AND -4037. |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5-1-1758 | 81361 | EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC | [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=4240012210391&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240012210391
- 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/4240-01-221-0391/
JSON: https://nsnexplorer.com/api/nsn/4240-01-221-0391.json