# NSN 5310-01-371-3113: Washer, Concave

NSN 5310-01-371-3113 (also written 5310013713113; NIIN 01-371-3113) is a washer, concave in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 5310-01-371-3113 (5310013713113)
- NIIN: 01-371-3113 (013713113)
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.513 AND INCHES MAXIMUM 0.525 |
| ABGG | RADIUS | INCHES MINIMUM 3.313 AND INCHES MAXIMUM 3.433 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 1.000 AND INCHES MAXIMUM 1.120 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.090 AND INCHES MAXIMUM 0.150 |
| FEAT | SPECIAL FEATURES | ALT. MATL,SINTEREDSTAINLESS STEEL T06 (304) PER ASTM B25 |
| MATT | MATERIAL | OVERALL STEEL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE AST- A36 OR ASSN STD SINGLE MATERIAL RESPONSE AST- A283 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY2,CL1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 9170435-01 | 98750 | SAN ANTONIO AIR LOGISTICS CENTER | [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=5310013713113&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310013713113
- 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/5310-01-371-3113/
JSON: https://nsnexplorer.com/api/nsn/5310-01-371-3113.json