# NSN 5310-01-111-6517: Nut, Self-Locking, Assembled Washe

NSN 5310-01-111-6517 (also written 5310011116517; NIIN 01-111-6517) is a nut, self-locking, assembled washe in Federal Supply Class 5310, Nuts and Washers. 7 manufacturer part numbers from 7 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-01-111-6517 (5310011116517)
- NIIN: 01-111-6517 (011116517)
- Item name: NUT,SELF-LOCKING,ASSEMBLED WASHE
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 0.460 |
| AAWY | COUNTERBORE DIAMETER | NUT INCHES MINIMUM 0.283 AND INCHES MAXIMUM 0.288 |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.280 |
| ACTA | NUT STYLE | — |
| ADFK | NUT COUNTERBORE DEPTH | NUT INCHES MINIMUM 0.087 AND INCHES MAXIMUM 0.097 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.306 AND INCHES MAXIMUM 0.313 |
| AZKQ | TEMP RATING | FAHRENHEIT MAXIMUM 450.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 43.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.250 |
| FEAT | SPECIAL FEATURES | WASHER ROCKWELL C SCALE 40.0 MIN AND 45.0 MAX |
| MATT | MATERIAL | WASHER STEEL |
| MATT | MATERIAL | NUT STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-6049 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 2,CL 2 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5310PL2281850 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BH00516A-4 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| GHN10009-6 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| GHN10009-6 | A0170 | LEONARDO SPA AERONAUTICS DIVISION - POMIGLIANO D'ARCO SITE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-4 | 17446 | HUCK INTERNATIONAL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-4 | 75237 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV MICRODOT PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-08-26 | $1.55 | 3,267 | CAVANAUGH GOVERNMENT GROUP, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011116517) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-26 | [SPE4A626V334Q](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011116517) | NUT, SELF-LOCKING, AS | CAVANAUGH GOVERNMENT GROUP, LLC | $5,063.85 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011116517&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011116517
- 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/5310-01-111-6517/
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