# NSN 5310-01-586-0557: Washer, Flat

NSN 5310-01-586-0557 (also written 5310015860557; NIIN 01-586-0557) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-586-0557 (5310015860557)
- NIIN: 01-586-0557 (015860557)
- Item name: WASHER,FLAT
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | MILLIMETERS NOMINAL 12.5 |
| AGAV | END ITEM IDENTIFICATION | 6115-01-561-7329 GENERATOR SET,DIESEL ENGINE,5.0 KW |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER (SNUBBING,HARDENED,12.5MM ID) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 04-20655 | 44940 | CUMMINS POWER GENERATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 04-20657 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 04-20749-2 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 04-20749-2 | 44940 | CUMMINS POWER GENERATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A026L575 | 44940 | CUMMINS POWER GENERATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-21 | [SPE7LX21D0007/SPE7L127FA974](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015860557) | WASHER, FLAT | CUMMINS INC DIV CUMMINS SALES AND SERVICE | $21.14 |
| 2026-09-09 | [SPE7LX21D0007/SPE7L126FAPV9](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015860557) | WASHER, FLAT | CUMMINS INC DIV CUMMINS SALES AND SERVICE | $10.57 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015860557&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015860557
- 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/5310-01-586-0557/
JSON: https://nsnexplorer.com/api/nsn/5310-01-586-0557.json