# NSN 5310-00-349-8530: Washer, Flat

NSN 5310-00-349-8530 (also written 5310003498530; NIIN 00-349-8530) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-00-349-8530 (5310003498530)
- NIIN: 00-349-8530 (003498530)
- 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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES NOMINAL 0.016 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 0.755 |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 0.281 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| MATT | MATERIAL | OVERALL LEAD |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 916B822-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 916B822-1 | 83843 | SUNDSTRAND CORP ELECTRIC POWER SYSTEMS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 916B822-1 | 99167 | HAMILTON SUNDSTRAND CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 916B822-1 | U3760 | WESTINGHOUSE SIGNALS LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-27 | [SPE4AX22D9404/SPE4A626F396Z](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003498530) | WASHER, FLAT | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $3,225.44 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310003498530&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003498530
- 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/5310-00-349-8530/
JSON: https://nsnexplorer.com/api/nsn/5310-00-349-8530.json