# NSN 5310-01-129-3379: Nut, Self-Locking, Round

NSN 5310-01-129-3379 (also written 5310011293379; NIIN 01-129-3379) is a nut, self-locking, round in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-01-129-3379 (5310011293379)
- NIIN: 01-129-3379 (011293379)
- Item name: NUT,SELF-LOCKING,ROUND
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| ABPH | SMALL END DIAMETER | INCHES MINIMUM 2.037 AND INCHES MAXIMUM 2.042 |
| ABQU | DRIVE POINT DEPTH | INCHES MINIMUM 0.162 AND INCHES MAXIMUM 0.202 |
| ACTA | NUT STYLE | — |
| ACTD | NUT DIAMETER | INCHES MINIMUM 2.115 AND INCHES MAXIMUM 2.135 |
| ADBG | NUT THICKNESS | INCHES NOMINAL 0.312 |
| ADBH | DRIVE POINT WIDTH | INCHES MINIMUM 0.240 AND INCHES MAXIMUM 0.250 |
| ADBJ | UNDERCUT THICKNESS | INCHES MINIMUM 0.095 AND INCHES MAXIMUM 0.105 |
| ADBM | DRIVE POINT QUANTITY | 8 |
| BZRR | THREAD SERIES | UNS |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 33.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 1.767 |
| MATT | MATERIAL | OVERALL STEEL COMP 4130 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-6758 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| S6235-20033-006 | 78286 | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-31 | [SPE4A122G0005/SPE4A626F396P](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011293379) | NUT, SELF-LOCKING, RO | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | $512.25 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011293379&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011293379
- 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/5310-01-129-3379/
JSON: https://nsnexplorer.com/api/nsn/5310-01-129-3379.json