# NSN 5310-01-251-6374: Washer, Shouldered And Recessed

NSN 5310-01-251-6374 (also written 5310012516374; NIIN 01-251-6374) is a washer, shouldered and recessed in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5310-01-251-6374 (5310012516374)
- NIIN: 01-251-6374 (012516374)
- Item name: WASHER,SHOULDERED AND RECESSED
- Federal Supply Class: [FSC 5310 Nuts and Washers](https://nsnexplorer.com/fsc/5310/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.263 AND INCHES MAXIMUM 0.268 |
| AAVH | SHOULDER DIAMETER | INCHES MINIMUM 0.372 AND INCHES MAXIMUM 0.374 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.619 AND INCHES MAXIMUM 0.624 |
| ABMG | SHOULDER HEIGHT | INCHES MINIMUM 0.047 AND INCHES MAXIMUM 0.053 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.048 AND INCHES MAXIMUM 0.052 |
| MATT | MATERIAL | OVERALL COPPER ALLOY 642 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-C-465 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 7-311512112-5 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7-311512112-5 | 8V613 | THE BOEING COMPANY | [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=5310012516374&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310012516374
- 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/5310-01-251-6374/
JSON: https://nsnexplorer.com/api/nsn/5310-01-251-6374.json