# NSN 5310-00-551-6313: Nut, Self-Locking, Barrel

NSN 5310-00-551-6313 (also written 5310005516313; NIIN 00-551-6313) is a nut, self-locking, barrel in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 5 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5310-00-551-6313 (5310005516313)
- NIIN: 00-551-6313 (005516313)
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MATT | MATERIAL | LOCKING INSERT PLASTIC POLYAMIDE NYLON |
| AAJD | THREAD CLASS | 3B |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT FED STD 2ND MATERIAL RESPONSE 66 |
| ACTA | NUT STYLE | — |
| ADEA | NUT HEIGHT | INCHES NOMINAL 0.618 |
| BZRR | THREAD SERIES | UNF |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| ACTD | NUT DIAMETER | INCHES MINIMUM 0.740 AND INCHES MAXIMUM 0.750 |
| ACVN | NUT LENGTH | INCHES NOMINAL 0.750 |
| ADBA | BARREL HEIGHT | INCHES NOMINAL 0.457 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.438 |
| SFTT | SURFACE TREATMENT | NUT CADMIUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATT | MATERIAL | NUT STEEL COMP 4130 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2452-070 | 019L2 | ESNA, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2452-070 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2452-070 | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2452-070 | A0170 | LEONARDO SPA AERONAUTICS DIVISION - POMIGLIANO D'ARCO SITE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BN00924-070 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-1848 | 98 | 2026-10-20 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310005516313&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310005516313&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310005516313
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5310-00-551-6313/
JSON: https://nsnexplorer.com/api/nsn/5310-00-551-6313.json