# NSN 5310-01-526-9983: Washer, Concave

NSN 5310-01-526-9983 (also written 5310015269983; NIIN 01-526-9983) is a washer, concave in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5310-01-526-9983 (5310015269983)
- NIIN: 01-526-9983 (015269983)
- Item name: WASHER,CONCAVE
- 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 |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | HIMARS, RSV, MK37, 2320-01-504-5218 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | TAPER WASHER |
| FEAT | SPECIAL FEATURES | NHA IS EXTENSION ASSY, P/N 4KK653;MATERIAL IS DACROMET, 500B, BLACK |
| HUES | COLOR | OVERALL BLACK |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 182-9734 | 34914 | HIAB USA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 499-4680 | 34914 | HIAB USA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4KK855 | 45152 | OSHKOSH CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4KK855 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015269983&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015269983
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5310-01-526-9983/
JSON: https://nsnexplorer.com/api/nsn/5310-01-526-9983.json