# NSN 5310-00-145-1857: Washer, Recessed

NSN 5310-00-145-1857 (also written 5310001451857; NIIN 00-145-1857) is a washer, recessed in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5310-00-145-1857 (5310001451857)
- NIIN: 00-145-1857 (001451857)
- Item name: WASHER,RECESSED
- 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 |
| --- | --- | --- |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-6758 OR MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-18729 |
| MATT | MATERIAL | OVERALL STEEL COMP 4130 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 43.0 |
| CSTM | RECESS ANGLE | DEGREES MINIMUM 70.0 AND DEGREES MAXIMUM 90.0 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.057 AND INCHES MAXIMUM 0.069 |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.314 AND INCHES MAXIMUM 0.318 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.583 AND INCHES MAXIMUM 0.603 |
| ABMD | RECESS DIAMETER | INCHES NOMINAL 0.407 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 2 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 253063 | 0KDP7 | KIDDE-FENWAL, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 253063 | 78062 | SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE | [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=5310001451857&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310001451857
- 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/5310-00-145-1857/
JSON: https://nsnexplorer.com/api/nsn/5310-00-145-1857.json