# NSN 5310-00-446-2879: Washer, Key

NSN 5310-00-446-2879 (also written 5310004462879; NIIN 00-446-2879) is a washer, key 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: 5310-00-446-2879 (5310004462879)
- NIIN: 00-446-2879 (004462879)
- Item name: WASHER,KEY
- 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 |
| --- | --- | --- |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.990 AND INCHES MAXIMUM 1.000 |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5042 OR A-S5040 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE TREATMENT RESPONSE A-S2400-2 |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.880 AND INCHES MAXIMUM 0.890 |
| ABMQ | EXTERNAL KEY QUANTITY | 3 |
| ABKY | EXTERNAL PREBENT KEY LENGTH | INCHES MINIMUM 0.178 AND INCHES MAXIMUM 0.198 |
| ABLF | EXTERNAL PREBENT KEY WIDTH | INCHES MINIMUM 0.115 AND INCHES MAXIMUM 0.135 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.028 AND INCHES MAXIMUM 0.036 |
| MATT | MATERIAL | OVERALL STEEL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10-161390-2 | 59501 | UNISON INDUSTRIES LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 10-161390-2 | 77820 | AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS | [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=5310004462879&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004462879
- 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/5310-00-446-2879/
JSON: https://nsnexplorer.com/api/nsn/5310-00-446-2879.json