# NSN 5310-00-205-7837: Nut, Self-Locking, Hexagon

NSN 5310-00-205-7837 (also written 5310002057837; NIIN 00-205-7837) is a nut, self-locking, hexagon in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-00-205-7837 (5310002057837)
- NIIN: 00-205-7837 (002057837)
- Item name: NUT,SELF-LOCKING,HEXAGON
- 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 2026-10-28)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-281,CLASS B |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ACTA | NUT STYLE | — |
| ADEA | NUT HEIGHT | INCHES NOMINAL 0.438 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.551 AND INCHES MAXIMUM 0.566 |
| CSXL | BEARING SURFACE FINISH | MICROINCHES 125.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| MATT | MATERIAL | NUT NICKEL ALLOY R-405 |
| CRTM | BEARING SURFACE TYPE | CHAMFERED |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.312 |
| AAJD | THREAD CLASS | 3B |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | LOCKING INSERT MIL SPEC ALL MATERIAL RESPONSES -IL---20693 |
| AZKQ | TEMP RATING | FAHRENHEIT NOMINAL 250.0 |
| MATT | MATERIAL | LOCKING INSERT PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 09NU058M0NEL | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 09NU518M0NEL | 27687 | GREER STOP NUT, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-27 | [SPE7M225V4665](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002057837) | NUT, SELF-LOCKING, HEXAGON | — | $25,830.00 |
| 2026-08-27 | [SPE7M225V4665](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002057837) | NUT, SELF-LOCKING, HE | — | $25,830.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310002057837&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002057837
- 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/5310-00-205-7837/
JSON: https://nsnexplorer.com/api/nsn/5310-00-205-7837.json