# NSN 5305-00-051-4078: Screw, Cap, Hexagon Head

NSN 5305-00-051-4078 (also written 5305000514078; NIIN 00-051-4078) is a screw, cap, hexagon head in Federal Supply Class 5305, Screws. 10 manufacturer part numbers from 9 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5305-00-051-4078 (5305000514078)
- NIIN: 00-051-4078 (000514078)
- Item name: SCREW,CAP,HEXAGON HEAD
- Federal Supply Class: [FSC 5305 Screws](https://nsnexplorer.com/fsc/5305/)
- 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 |
| --- | --- | --- |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES MINIMUM 0.875 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 1.250 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.195 AND INCHES MAXIMUM 0.211 |
| AATB | WIDTH BETWEEN FLATS | INCHES MINIMUM 0.489 AND INCHES MAXIMUM 0.500 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.312 |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 32.0 AND ROCKWELL C MAXIMUM 38.0 |
| MATT | MATERIAL | OVERALL STEEL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE AST- A354, GRADE BD |
| SFTT | SURFACE TREATMENT | OVERALL ZINC AND CHROMATE |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD ALL TREATMENT RESPONSES AST- B633, TYE FE TO ZN5 OR FE TO ZN8 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 157D4350-105 | 05606 | GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 186505 | 72582 | ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 223587 | 00000 | ORDNANCE CORPS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5306000514078 | A00AM | E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 63-CL-3335-1 | 77873 | ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AESQ1F312A25AW9A91 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B1821BH031F125N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C10-26066 | 88907 | BRUNSWICK CORP DBA MERCURY MARINE DIV MERCURY MARINE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS35304-36 | 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/) |
| MS90727-36 | 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/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305000514078&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305000514078
- 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/5305-00-051-4078/
JSON: https://nsnexplorer.com/api/nsn/5305-00-051-4078.json