# NSN 5310-00-616-5997: Nut, Self-Locking, Hexagon

NSN 5310-00-616-5997 (also written 5310006165997; NIIN 00-616-5997) is a nut, self-locking, hexagon in Federal Supply Class 5310, Nuts and Washers. 16 manufacturer part numbers from 9 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5310-00-616-5997 (5310006165997)
- NIIN: 00-616-5997 (006165997)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | ROCKWELL C34-C41 HARDNESS RATING;LUBRICATED WITH KAYLUBE MOLYBDENUM DISULFIDE;THIS ITEM IS A CRITICAL SAFETY ITEM (CSI) AS NOTED BY DEMIL CODE |
| MATT | MATERIAL | OVERALL STEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 4130 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-6049 OR NATIONAL STD/SPEC 1ST MATERIAL RESPONSE A-S 6322 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5000 OR NATIONAL STD/SPEC 3RD MATERIAL RESPONSE A-S 6378 OR NATIONAL STD/SPEC 4TH MATERIAL RESPONSE A-S 6350 OR A-S 6370 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| CRTM | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| CSXL | BEARING SURFACE FINISH | MICROINCHES 125.0 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE A-S-QQ--416,TYE II,CLASS 2 |
| ZZZK | SPECIFICATION/STANDARD DATA | MANUFACTURERS STANDARD 26512-GN10U |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.500 |
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZK |
| AZKQ | TEMP RATING | FAHRENHEIT MAXIMUM 450.0 |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.741 AND INCHES MAXIMUM 0.752 |
| ADEA | NUT HEIGHT | INCHES NOMINAL 0.328 |
| AGAV | END ITEM IDENTIFICATION | 1630-00-970-6671 |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| ACTA | NUT STYLE | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| GN10U820 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| GN10U820 | 70974 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10-8 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10-8 | F6033 | TECNOTEC SARL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10-8 | F7652 | KLX AEROSPACE SOLUTIONS II SAS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10-8 | FB009 | BOEING DISTRIBUTION SERVICES SAS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10-8 | U0625 | B-N GROUP LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | 5R793 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | 70974 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | F7652 | KLX AEROSPACE SOLUTIONS II SAS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8 | FB009 | BOEING DISTRIBUTION SERVICES SAS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8GN | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8GN | 5R793 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H10E8GN | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310006165997&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310006165997
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5310-00-616-5997/
JSON: https://nsnexplorer.com/api/nsn/5310-00-616-5997.json