# NSN 5310-01-057-3626: Washer, Recessed

NSN 5310-01-057-3626 (also written 5310010573626; NIIN 01-057-3626) is a washer, recessed in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-057-3626 (5310010573626)
- NIIN: 01-057-3626 (010573626)
- 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 2026-10-15)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUB | HOLE DIAMETER | INCHES MINIMUM 0.501 AND INCHES MAXIMUM 0.505 |
| ABKV | OUTSIDE DIAMETER | INCHES MINIMUM 0.888 AND INCHES MAXIMUM 0.898 |
| ABMD | RECESS DIAMETER | INCHES MINIMUM 0.622 AND INCHES MAXIMUM 0.632 |
| ABPX | MATERIAL THICKNESS | INCHES MINIMUM 0.071 AND INCHES MAXIMUM 0.085 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 38.0 AND ROCKWELL C MAXIMUM 45.0 |
| CSTM | RECESS ANGLE | DEGREES NOMINAL 90.0 |
| MATT | MATERIAL | OVERALL STEEL COMP 4130 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-658 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-18729 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| 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 |
| --- | --- | --- | --- |
| 10122064 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5310PL0744848 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21206-C8 | 001JK | EMBRAER S.A. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21206-C8 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21206C8 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-14 | [SPE4A626D61LS/SPE4A627F0781](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310010573626) | WASHER, RECESSED | — | $1,152.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310010573626&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310010573626
- 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/5310-01-057-3626/
JSON: https://nsnexplorer.com/api/nsn/5310-01-057-3626.json