# NSN 5310-01-499-6577: Washer, Flat

NSN 5310-01-499-6577 (also written 5310014996577; NIIN 01-499-6577) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Nov 2026.

## Identification

- NSN: 5310-01-499-6577 (5310014996577)
- NIIN: 01-499-6577 (014996577)
- 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 Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-11-06)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 0.578 |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES NOMINAL 0.032 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 1.062 |
| AGAV | END ITEM IDENTIFICATION | FLEET COMBAT |
| FEAT | SPECIAL FEATURES | WASHER, FIREWALL ASSEMBLY, LONGITUDINAL R.H. |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-5059, A-S 5510, A-S 5512 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 70304-02114-174 | 78286 | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-04 | [SPE4A122G0005/SPE4A627F1982](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310014996577) | WASHER, FLAT | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | $2,063.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310014996577&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310014996577
- 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/5310-01-499-6577/
JSON: https://nsnexplorer.com/api/nsn/5310-01-499-6577.json