# NSN 5310-01-111-4264: Nut, Plain, Assembled Washer

NSN 5310-01-111-4264 (also written 5310011114264; NIIN 01-111-4264) is a nut, plain, assembled washer in Federal Supply Class 5310, Nuts and Washers. 6 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-111-4264 (5310011114264)
- NIIN: 01-111-4264 (011114264)
- Item name: NUT,PLAIN,ASSEMBLED 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 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 |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 0.560 |
| AAWY | COUNTERBORE DIAMETER | NUT INCHES MINIMUM 0.347 AND INCHES MAXIMUM 0.352 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 0.340 |
| ACTA | NUT STYLE | — |
| ADEA | NUT HEIGHT | INCHES NOMINAL 0.340 |
| ADFK | NUT COUNTERBORE DEPTH | NUT INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.376 |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.419 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 43.0 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.312 |
| MATT | MATERIAL | WASHER STEEL |
| MATT | MATERIAL | NUT STEEL COMP 8740 OR STEEL COMP E4340 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT MIL SPEC 1ST MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5000 |
| 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 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5310PL0821522 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BH00516A5 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| GHN10009-7 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-5 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-5 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KFN542-5 | 75237 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV MICRODOT PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-21 | [SPE4AX25D5000/SPE4A226F7497](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011114264) | NUT, PLAIN, ASSEMBLED WASHER | LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS | $9,125.73 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310011114264&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310011114264
- 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/5310-01-111-4264/
JSON: https://nsnexplorer.com/api/nsn/5310-01-111-4264.json