# NSN 5310-01-104-6820: Nut, Self-Locking, Barrel

NSN 5310-01-104-6820 (also written 5310011046820; NIIN 01-104-6820) is a nut, self-locking, barrel in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-01-104-6820 (5310011046820)
- NIIN: 01-104-6820 (011046820)
- Item name: NUT,SELF-LOCKING,BARREL
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ACTA | NUT STYLE | — |
| ACTD | NUT DIAMETER | INCHES NOMINAL 0.406 |
| ACVN | NUT LENGTH | INCHES NOMINAL 0.750 |
| ADBA | BARREL HEIGHT | INCHES NOMINAL 0.457 |
| ADEA | NUT HEIGHT | INCHES NOMINAL 0.508 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 36.0 AND ROCKWELL C MAXIMUM 43.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.375 |
| MATT | MATERIAL | OVERALL EXCEPT INSERT STEEL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| BFN00941X6 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| F2752-064 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| F2752-064 | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-05 | [SPE4A727D5009](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011046820) | NUT, SELF-LOCKING, BARREL | — | $350,000.00 |
| 2026-09-22 | [SPE4A626P0Y76](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011046820) | NUT, SELF-LOCKING, BA | AERO-GLEN INTERNATIONAL LLC | $36,212.54 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011046820&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011046820
- 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/5310-01-104-6820/
JSON: https://nsnexplorer.com/api/nsn/5310-01-104-6820.json