# NSN 5310-00-395-4322: Nut, Self-Locking, Extended Washer

NSN 5310-00-395-4322 (also written 5310003954322; NIIN 00-395-4322) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 11 manufacturer part numbers from 9 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5310-00-395-4322 (5310003954322)
- NIIN: 00-395-4322 (003954322)
- 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 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 |
| MATT | MATERIAL | OVERALL NICKEL ALLOY 718 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD 1ST MATERIAL RESPONSE A-S 5662 OR ASSN STD 1ST MATERIAL RESPONSE A-S 5663 |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-14550 |
| ADEM | WASHER THICKNESS | INCHES MINIMUM 0.120 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.928 AND INCHES MAXIMUM 0.940 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| ACTA | NUT STYLE | — |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| SFTT | SURFACE TREATMENT | OVERALL COPPER |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| AAVX | WASHER OUTSIDE DIAMETER | INCHES MAXIMUM 1.221 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.750 |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 0.750 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 642AS0736-5 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 77018-1216 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 77018-1216 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BH572-12 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H49843-12 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H49843-12 | R1120 | SATAIR A/S | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LH10874-12 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LH10874-12 | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LH10874-12 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SLN209-12M | 16258 | SPACE-LOK, INC. DBA SPACE-LOK INC DIV SPACE-LOK | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M572-12M | 76301 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-09 | [SPE4AC27P0013](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003954322) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | — | $4,740.00 |
| 2026-10-09 | [SPE4AC27P0013](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003954322) | NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE | — | $4,740.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310003954322&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310003954322
- 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/5310-00-395-4322/
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