# NSN 5310-00-023-4771: Washer, Recessed

NSN 5310-00-023-4771 (also written 5310000234771; NIIN 00-023-4771) is a washer, recessed in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5310-00-023-4771 (5310000234771)
- NIIN: 00-023-4771 (000234771)
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-16)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.300 AND INCHES MAXIMUM 0.310 |
| ABKV | OUTSIDE DIAMETER | INCHES MAXIMUM 0.457 |
| ABMD | RECESS DIAMETER | INCHES MINIMUM 0.420 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.065 AND INCHES MAXIMUM 0.095 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 41.0 AND ROCKWELL C MAXIMUM 48.0 |
| CSTM | RECESS ANGLE | DEGREES NOMINAL 90.0 |
| MATT | MATERIAL | OVERALL STEEL COMP 601 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 6304 |
| SFTT | SURFACE TREATMENT | OVERALL NICKEL AND ZINC |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD 1ST TREATMENT RESPONSE A-S 2417 AND ASSN STD 2ND TREATMENT RESPONSE A-S 2417 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10116498 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4084-04 | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NAS1288-4W | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-4741 | 270 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310000234771&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310000234771&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310000234771
- 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/5310-00-023-4771/
JSON: https://nsnexplorer.com/api/nsn/5310-00-023-4771.json