# NSN 5310-01-124-6631: Nut, Self-Locking, Assembled Washe

NSN 5310-01-124-6631 (also written 5310011246631; NIIN 01-124-6631) is a nut, self-locking, assembled washe in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-124-6631 (5310011246631)
- NIIN: 01-124-6631 (011246631)
- Item name: NUT,SELF-LOCKING,ASSEMBLED WASHE
- 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 |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MINIMUM 0.574 AND INCHES MAXIMUM 0.640 |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.385 |
| ACTA | NUT STYLE | — |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.312 |
| AZKQ | TEMP RATING | FAHRENHEIT MAXIMUM 450.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | ROCKWELL C MAXIMUM 48.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.312 |
| MATT | MATERIAL | OVERALL STEEL |
| SFTT | SURFACE TREATMENT | NUT CADMIUM |
| SFTT | SURFACE TREATMENT | WASHER CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NUT FED SPEC SINGLE TREATMENT RESPONSE QQ--416 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | WASHER FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TYE 2 CLASS 2 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MS90415-5 | 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/) |
| MS90415-5 | 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/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE4A622D5988/SPE4A627F0354](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011246631) | NUT, SELF-LOCKING, ASSEMBLED WASHER | DON INDUSTRIAL GROUP LLC | $18,743.04 |
| 2026-10-06 | [SPE4A622D5988/SPE4A627F0350](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011246631) | NUT, SELF-LOCKING, ASSEMBLED WASHER | DON INDUSTRIAL GROUP LLC | $616.32 |
| 2026-10-06 | [SPE4A622D5988/SPE4A627F0329](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011246631) | NUT, SELF-LOCKING, ASSEMBLED WASHER | DON INDUSTRIAL GROUP LLC | $6,203.52 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011246631&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011246631
- 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/5310-01-124-6631/
JSON: https://nsnexplorer.com/api/nsn/5310-01-124-6631.json