# NSN 5310-01-591-8642: Nut, Self-Locking, Hexagon

NSN 5310-01-591-8642 (also written 5310015918642; NIIN 01-591-8642) is a nut, self-locking, hexagon in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5310-01-591-8642 (5310015918642)
- NIIN: 01-591-8642 (015918642)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 6H |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | — |
| ADEA | NUT HEIGHT | MILLIMETERS NOMINAL 14.0 |
| AGAV | END ITEM IDENTIFICATION | 2350-01-555-3697 UNMANNED GROUND VEHICLE, TRACKED |
| ASDB | WIDTH ACROSS FLATS | MILLIMETERS NOMINAL 22.0 |
| BZRR | THREAD SERIES | M |
| CQJX | NOMINAL THREAD SIZE | MILLIMETERS 14.0 |
| CQQR | THREAD PITCH IN MILLIMETERS | 2.00 |
| CRTM | BEARING SURFACE TYPE | FLAT |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | NYLON-INSERT HEX LOCKNUT |
| MATT | MATERIAL | LOCKING INSERT PLASTIC NYLON |
| MATT | MATERIAL | OVERALL STEEL |
| SFTT | SURFACE TREATMENT | OVERALL ZINC |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 94645A240 | 39428 | MCMASTER-CARR SUPPLY CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE4A626PU231](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015918642) | NUT, SELF-LOCKING, HE | — | $1,299.20 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310015918642&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310015918642
- 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/5310-01-591-8642/
JSON: https://nsnexplorer.com/api/nsn/5310-01-591-8642.json