# NSN 5310-00-559-5551: Nut Assembly, Self-Locking, Gang C

NSN 5310-00-559-5551 (also written 5310005595551; NIIN 00-559-5551) is a nut assembly, self-locking, gang c in Federal Supply Class 5310, Nuts and Washers. 12 manufacturer part numbers from 7 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5310-00-559-5551 (5310005595551)
- NIIN: 00-559-5551 (005595551)
- Item name: NUT ASSEMBLY,SELF-LOCKING,GANG C
- 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 2026-11-04)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| ADFF | ASSEMBLY OVERALL HEIGHT | INCHES MAXIMUM 0.220 |
| ADNC | REMOVABLE NUT MANUFACTURER PART NUMBER | ST3M445C3M1 |
| AAWY | COUNTERBORE DIAMETER | NUT INCHES MINIMUM 0.194 |
| ADFK | NUT COUNTERBORE DEPTH | NUT INCHES MINIMUM 0.070 |
| ADFH | NUT SPACING | INCHES NOMINAL 1.125 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ABAJ | LUBRICATION | DRY FILM LUBRICANT |
| AZKQ | TEMP RATING | FAHRENHEIT NOMINAL 450.0 |
| AZXC | NUT QUANTITY | 64 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | CHANNEL FED SPEC 1ST TREATMENT RESPONSE QQ--35 AND MIL SPEC 2ND TREATMENT RESPONSE -IL--85582, TY 1, CL 2 |
| ZZZK | SPECIFICATION/STANDARD DATA | MANUFACTURERS STANDARD 76301-ST3-463 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NUT ASSN STD SINGLE MATERIAL RESPONSE A-S 5525 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5732 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 72.000 |
| ABMK | OVERALL WIDTH | INCHES MAXIMUM 0.452 |
| ACTA | NUT STYLE | — |
| ADFD | REMOVABLE NUT MANUFACTURER CODE | 76301 |
| ADFE | CHANNEL STYLE | — |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQJX | NOMINAL THREAD SIZE | INCHES 0.190 |
| SFTT | SURFACE TREATMENT | NUT NICKEL AND COPPER ALLOY |
| ADFG | CHANNEL HEIGHT | INCHES MAXIMUM 0.250 |
| CBBL | FEATURES PROVIDED | FLOATING NUT |
| BZRR | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| SFTT | SURFACE TREATMENT | CHANNEL PASSIVATE AND PAINT LUSTERLESS |
| AAJD | THREAD CLASS | 3B |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | CHANNEL ASSN STD SINGLE MATERIAL RESPONSE A-S 5510 |
| MATT | MATERIAL | NUT IRON ALLOY 660 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10121508 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3M463C9A64-1P | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BGC463C1-9 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C17063-1-9 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G18421L1-3-9 | 72962 | HARVARD INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G49250E3-1-9 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G49250E3-1-9 | 75237 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV MICRODOT PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M463C9A64-1 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M463C9A64-1 | 27238 | BRISTOL INDUSTRIES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M463C9A64-1 | 76301 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M463C9A64-1 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ST3M463C9A64-1P | 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 |
| --- | --- | --- | --- | --- |
| 2026-08-13 | [SPE4A626PAS27](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310005595551) | NUT ASSEMBLY, SELF-L | ADEPT FASTENERS INC | $11,088.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5310005595551&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5310005595551
- 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/5310-00-559-5551/
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