# NSN 5310-00-351-6766: Washer, Key

NSN 5310-00-351-6766 (also written 5310003516766; NIIN 00-351-6766) is a washer, key in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-00-351-6766 (5310003516766)
- NIIN: 00-351-6766 (003516766)
- 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 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 |
| --- | --- | --- |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | INCHES NOMINAL 0.750 |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 2.562 |
| ABKV | OUTSIDE DIAMETER | INCHES NOMINAL 3.312 |
| MATT | MATERIAL | OVERALL STEEL COMP 304 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-S-766,COND A |
| ABMR | INTERNAL KEY QUANTITY | 1 |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | INCHES NOMINAL 0.375 |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | INCHES NOMINAL 1.031 |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | INCHES NOMINAL 4.500 |
| ABMQ | EXTERNAL KEY QUANTITY | 4 |
| STYL | STYLE DESIGNATOR | — |
| ABPX | MATERIAL THICKNESS | INCHES NOMINAL 0.059 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 420397-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| EPA21A00-076 | F3014 | NAVAL GROUP SITE DE BREST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-06 | [SPE4A626V040G](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003516766) | WASHER, KEY | — | $2,565.40 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310003516766&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003516766
- 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/5310-00-351-6766/
JSON: https://nsnexplorer.com/api/nsn/5310-00-351-6766.json