# NSN 5310-01-661-3876: Washer, Lock

NSN 5310-01-661-3876 (also written 5310016613876; NIIN 01-661-3876) is a washer, lock in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-661-3876 (5310016613876)
- NIIN: 01-661-3876 (016613876)
- Item name: WASHER,LOCK
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE TREATMENT RESPONSE AST- A380 |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, LOCKING IN M12X20X1 |
| AGAV | END ITEM IDENTIFICATION | 4210-01-622-0440; TRUCK, FIRE FIGHTING |
| ABKW | OVERALL HEIGHT | MILLIMETERS MINIMUM 19.98 AND MILLIMETERS MAXIMUM 20.50 |
| AAUB | HOLE DIAMETER | MILLIMETERS MINIMUM 13.00 AND MILLIMETERS MAXIMUM 13.27 |
| ABKV | OUTSIDE DIAMETER | MILLIMETERS MINIMUM 0.96 AND MILLIMETERS MAXIMUM 1.04 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 4317521 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-02 | [SPE7L126V213U](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310016613876) | WASHER, LOCK | RUTA SUPPLIES INC | $486.00 |
| 2026-09-02 | [SPE7L126V211V](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310016613876) | WASHER, LOCK | RUTA SUPPLIES INC | $486.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310016613876&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310016613876
- 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/5310-01-661-3876/
JSON: https://nsnexplorer.com/api/nsn/5310-01-661-3876.json