# NSN 4320-00-383-4370: Ring, Wearing

NSN 4320-00-383-4370 (also written 4320003834370; NIIN 00-383-4370) is a ring, wearing in Federal Supply Class 4320, Power and Hand Pumps. 3 manufacturer part numbers from 1 supplier are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4320-00-383-4370 (4320003834370)
- NIIN: 00-383-4370 (003834370)
- Item name: RING,WEARING
- Federal Supply Class: [FSC 4320 Power and Hand Pumps](https://nsnexplorer.com/fsc/4320/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAQL | BODY STYLE | — |
| BZLX | CORNER SHAPE | OUTSIDE RIGHT CORNER SQUARE |
| ADAS | BODY INSIDE DIAMETER | INCHES NOMINAL 5.938 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 1.266 |
| AGRS | DISTANCE BETWEEN FLANGES | INCHES NOMINAL 0.766 |
| AJFM | END TO FLANGE DISTANCE | INCHES NOMINAL 1.000 |
| ADAR | BODY OUTSIDE DIAMETER | INCHES NOMINAL 6.594 |
| BZLX | CORNER SHAPE | INSIDE RIGHT CORNER ROUND |
| BZLX | CORNER SHAPE | OUTSIDE LEFT CORNER SQUARE |
| ADNU | CORNER RADIUS | INSIDE RIGHT CORNER INCHES NOMINAL 0.250 |
| ADXL | LEFT SIDE FLANGE THICKNESS | INCHES NOMINAL 0.250 |
| AYRS | DISTANCE FROM END | INCHES NOMINAL 0.281 |
| AYRE | INTERNAL FLANGE INSIDE DIAMETER | INCHES NOMINAL 5.375 |
| MATT | MATERIAL | COPPER ALLOY |
| AYRL | LARGEST EXTERNAL ANCHOR FLANGE RADIUS | INCHES NOMINAL 3.500 |
| BZLX | CORNER SHAPE | INSIDE LEFT CORNER SQUARE |
| AYRK | SMALLEST EXTERNAL ANCHOR FLANGE RADIUS | INCHES NOMINAL 3.219 |
| ADXM | RIGHT SIDE FLANGE THICKNESS | INCHES NOMINAL 0.250 |
| AYRG | INTERNAL FLANGE WIDTH | INCHES NOMINAL 0.219 |
| AYRM | DISTANCE BELOW CENTERLINE | INCHES NOMINAL 0.094 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 654B0261 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 654B0261C051A | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 999R0341PC34 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M1-27-T-2175 | 1 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4320003834370&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4320003834370&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320003834370
- 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/4320-00-383-4370/
JSON: https://nsnexplorer.com/api/nsn/4320-00-383-4370.json