# NSN 5310-00-225-6190: Nut, Self-Locking, Hexagon

NSN 5310-00-225-6190 (also written 5310002256190; NIIN 00-225-6190) is a nut, self-locking, hexagon in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-00-225-6190 (5310002256190)
- NIIN: 00-225-6190 (002256190)
- Item name: NUT,SELF-LOCKING,HEXAGON
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT ASSN STD 1ST MATERIAL RESPONSE A-S 5688 OR ASSN STD 2ND MATERIAL RESPONSE A-S 5640 OR ASSN STD 3RD MATERIAL RESPONSE A-S 5647 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.438 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| SFTT | SURFACE TREATMENT | OVERALL EXCEPT INSERT PASSIVATE |
| CSXL | BEARING SURFACE FINISH | MICROINCHES 125.0 |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL EXCEPT INSERT FED SPEC SINGLE TREATMENT RESPONSE QQ--35 |
| CRTM | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| AZKQ | TEMP RATING | FAHRENHEIT NOMINAL 250.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| CRSQ | COUNTERSINK ANGLE | NUT DEGREES NOMINAL 88.0 |
| AAJD | THREAD CLASS | 3B |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.679 AND INCHES MAXIMUM 0.690 |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ABAJ | LUBRICATION | SOLUBLE LUBRICANT |
| ACTA | NUT STYLE | — |
| ADEA | NUT HEIGHT | INCHES MINIMUM 0.435 AND INCHES MAXIMUM 0.469 |
| AGAV | END ITEM IDENTIFICATION | A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE |
| MATT | MATERIAL | NUT STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 002-003645-008 | 26916 | NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 79N3-070U | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 79NE070U | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21044C7 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS21044C7 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE4A726D5570/SPE4A726F094X](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002256190) | NUT, SELF-LOCKING, HEXAGON | — | $1,034.08 |
| 2026-09-17 | [SPE4A726D5570/SPE4A726F048P](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002256190) | NUT, SELF-LOCKING, HE | — | $1,173.92 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310002256190&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310002256190
- 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/5310-00-225-6190/
JSON: https://nsnexplorer.com/api/nsn/5310-00-225-6190.json