# NSN 5310-01-573-2103: Washer, Flat

NSN 5310-01-573-2103 (also written 5310015732103; NIIN 01-573-2103) 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 Aug 2026.

## Identification

- NSN: 5310-01-573-2103 (5310015732103)
- NIIN: 01-573-2103 (015732103)
- 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 L: annual buy value is below the screening threshold. (observed 2026-11-01)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES MINIMUM 0.041 AND INCHES MAXIMUM 0.051 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S4117 |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY 6061 |
| ABMX | CENTER HOLE SHAPE STYLE | — |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 1.110 AND INCHES MAXIMUM 1.120 |
| ADAV | OVERALL DIAMETER | INCHES MINIMUM 1.452 AND INCHES MAXIMUM 1.472 |
| AGAV | END ITEM IDENTIFICATION | B-2 AIRCRAFT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 772923 | 99167 | HAMILTON SUNDSTRAND CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-25 | [SPE4AX20D9410/SPE4A526F8865](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015732103) | WASHER, FLAT | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $4,372.85 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015732103&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015732103
- 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/5310-01-573-2103/
JSON: https://nsnexplorer.com/api/nsn/5310-01-573-2103.json