# NSN 5310-01-657-1378: Washer, Flat

NSN 5310-01-657-1378 (also written 5310016571378; NIIN 01-657-1378) 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 Sep 2026.

## Identification

- NSN: 5310-01-657-1378 (5310016571378)
- NIIN: 01-657-1378 (016571378)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 0.28 |
| ABMW | PERIPHERAL SHAPE STYLE | — |
| ABNM | THICKNESS | INCHES NOMINAL 0.030 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 0.75 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | GASKET |
| FEAT | SPECIAL FEATURES | MATERIAL:ALUMINUM MESH WIRE:0.010 INCH DIA STRANDS,40 STRANDS PER INCH X 40 STRANDS PER INCH |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY 5056 |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| PG267000-67 | 1NPE1 | AVIATION DEVICES AND ELECTRONIC COMPONENTS, L.L.C. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-17 | [SPE4A623DC072/SPE4A626F465Y](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310016571378) | WASHER, FLAT | AVIATION DEVICES AND ELECTRONIC COMPONENTS, L.L.C. | $22,468.25 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310016571378&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310016571378
- 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/5310-01-657-1378/
JSON: https://nsnexplorer.com/api/nsn/5310-01-657-1378.json