# NSN 5310-01-531-0593: Washer, Flat

NSN 5310-01-531-0593 (also written 5310015310593; NIIN 01-531-0593) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-531-0593 (5310015310593)
- NIIN: 01-531-0593 (015310593)
- 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 P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.505 AND INCHES MAXIMUM 0.515 |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES MINIMUM 0.018 AND INCHES MAXIMUM 0.022 |
| ADAV | OVERALL DIAMETER | INCHES MINIMUM 1.100 AND INCHES MAXIMUM 1.120 |
| AGAV | END ITEM IDENTIFICATION | E FWD FUSELAGE |
| MATT | MATERIAL | OVERALL STEEL COMP 321 OR STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OR STEEL COMP 303 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-6721 OR MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-5059 OR MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-7720 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| S8157 | 70210 | HONEYWELL INTERNATIONAL INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| S8157N571-020 | 2N935 | BOEING DISTRIBUTION SERVICES X, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| S8157N571-020 | 99193 | HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-05 | $50.00 | 2 | BOEING DISTRIBUTION SERVICES X, INC. | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015310593) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-05 | [SPE4A527P0240](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015310593) | WASHER, FLAT | BOEING DISTRIBUTION SERVICES X, INC. | $100.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015310593&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015310593
- 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/5310-01-531-0593/
JSON: https://nsnexplorer.com/api/nsn/5310-01-531-0593.json