# NSN 5310-00-340-4926: Nut, Self-Locking, Extended Washer

NSN 5310-00-340-4926 (also written 5310003404926; NIIN 00-340-4926) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-00-340-4926 (5310003404926)
- NIIN: 00-340-4926 (003404926)
- 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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AZKQ | TEMP RATING | FAHRENHEIT NOMINAL 450.0 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.553 AND INCHES MAXIMUM 0.564 |
| MATT | MATERIAL | OVERALL STEEL COMP H11 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 6485 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 3 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQFM | HARDNESS RATING | ROCKWELL C MAXIMUM 45.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.437 |
| ADEM | WASHER THICKNESS | INCHES NOMINAL 0.075 |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 0.750 |
| AAJD | THREAD CLASS | 3B |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.520 |
| ACTA | NUT STYLE | — |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| FNH22-720 | 50392 | SPS TECHNOLOGIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| FNH22-720 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE4A625D5859/SPE4A626F444Q](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003404926) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | APOLLO AEROSPACE COMPONENTS LLC | $8,469.50 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310003404926&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003404926
- 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/5310-00-340-4926/
JSON: https://nsnexplorer.com/api/nsn/5310-00-340-4926.json