# NSN 5310-01-378-8179: Nut, Self-Locking, Extended Washer

NSN 5310-01-378-8179 (also written 5310013788179; NIIN 01-378-8179) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-378-8179 (5310013788179)
- NIIN: 01-378-8179 (013788179)
- Item name: NUT,SELF-LOCKING,EXTENDED WASHER
- 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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MINIMUM 0.648 AND INCHES MAXIMUM 0.658 |
| ABAJ | LUBRICATION | WAX |
| ABKW | OVERALL HEIGHT | INCHES MINIMUM 0.458 AND INCHES MAXIMUM 0.468 |
| ACTA | NUT STYLE | — |
| ADEM | WASHER THICKNESS | INCHES MINIMUM 0.103 AND INCHES MAXIMUM 0.113 |
| AGAV | END ITEM IDENTIFICATION | F-16 ACFT |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.492 AND INCHES MAXIMUM 0.502 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | ROCKWELL C NOMINAL 38.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.375 |
| FEAT | SPECIAL FEATURES | SAFETY FLIGHT |
| MATT | MATERIAL | OVERALL STEEL COMP 8620 OR STEEL COMP 4037 OR STEEL COMP 8740 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416, TYE 1 CLASS 3 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 42FW624 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9235390-05 | 8K112 | FREUNDLICH SUPPLY COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9235390-05 | 98747 | OGDEN AIR LOGISTICS CENTER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-29 | $257.60 | 15 | 13W08 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310013788179) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-29 | [SPE4A626V410S](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310013788179) | NUT, SELF-LOCKING, EX | — | $3,864.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310013788179&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310013788179
- 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/5310-01-378-8179/
JSON: https://nsnexplorer.com/api/nsn/5310-01-378-8179.json