# NSN 5310-15-028-5640: Washer, Flat

NSN 5310-15-028-5640 (also written 5310150285640; NIIN 15-028-5640) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. It was last purchased in Nov 2026.

## Identification

- NSN: 5310-15-028-5640 (5310150285640)
- NIIN: 15-028-5640 (150285640)
- 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/)

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-11-04 | $85.67 | 99 | PIONEER INDUSTRIES, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310150285640) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-04 | [SPE7L127P1192](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310150285640) | WASHER, FLAT | PIONEER INDUSTRIES, LLC | $8,481.33 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310150285640&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310150285640
- 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/5310-15-028-5640/
JSON: https://nsnexplorer.com/api/nsn/5310-15-028-5640.json