# NSN 5310-01-493-2887: Washer, Flat

NSN 5310-01-493-2887 (also written 5310014932887; NIIN 01-493-2887) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-01-493-2887 (5310014932887)
- NIIN: 01-493-2887 (014932887)
- 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 Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | MILLIMETERS NOMINAL 3.2 |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| ABNM | THICKNESS | MILLIMETERS MINIMUM 0.45 AND MILLIMETERS MAXIMUM 0.55 |
| ADAV | OVERALL DIAMETER | MILLIMETERS NOMINAL 7.0 |
| AGAV | END ITEM IDENTIFICATION | RD-681A/UNH |
| CQFM | HARDNESS RATING | ROCKWELL B NOMINAL 70.0 |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 93475A210 | 39428 | MCMASTER-CARR SUPPLY CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 93475A210 | 97852 | STAR STAINLESS SCREW CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-08-25 | $0.04 | 5,197 | CAVANAUGH GOVERNMENT GROUP, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310014932887) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-25 | [SPE4A626V328X](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310014932887) | WASHER, FLAT | CAVANAUGH GOVERNMENT GROUP, LLC | $207.88 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310014932887&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310014932887
- 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/5310-01-493-2887/
JSON: https://nsnexplorer.com/api/nsn/5310-01-493-2887.json