# NSN 5310-00-458-2846: Nut, Self-Locking, Extended Washer

NSN 5310-00-458-2846 (also written 5310004582846; NIIN 00-458-2846) 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: 5310-00-458-2846 (5310004582846)
- NIIN: 00-458-2846 (004582846)
- 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 P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 0.750 |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.520 |
| AZKQ | TEMP RATING | FAHRENHEIT NOMINAL 450.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| ACTA | NUT STYLE | — |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.556 AND INCHES MAXIMUM 0.564 |
| AAJD | THREAD CLASS | 3B |
| ABAJ | LUBRICATION | SOLUBLE LUBRICANT |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.438 |
| MATT | MATERIAL | OVERALL STEEL |
| CQFM | HARDNESS RATING | ROCKWELL C MAXIMUM 49.0 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 3 |
| ADEM | WASHER THICKNESS | INCHES MINIMUM 0.075 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 9235390-11 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LH8743T7 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LH8743T7 | 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 |
| --- | --- | --- | --- | --- |
| 2026-09-29 | [SPE4A726D5820](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004582846) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | — | $349,999.99 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310004582846&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310004582846
- 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/5310-00-458-2846/
JSON: https://nsnexplorer.com/api/nsn/5310-00-458-2846.json