# NSN 5305-00-404-1178: Screw, Cap, Socket Head

NSN 5305-00-404-1178 (also written 5305004041178; NIIN 00-404-1178) is a screw, cap, socket head in Federal Supply Class 5305, Screws. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5305-00-404-1178 (5305004041178)
- NIIN: 00-404-1178 (004041178)
- Item name: SCREW,CAP,SOCKET 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 2026-10-28)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MATT | MATERIAL | OVERALL STEEL COMP 316 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE TREATMENT RESPONSE -IL-F-14072 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-S-763 |
| AASK | HEAD STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.375 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.312 AND INCHES MAXIMUM 0.315 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES MAXIMUM 1.000 |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.368 AND INCHES MAXIMUM 0.375 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AAJD | THREAD CLASS | 2A |
| AASL | HEAD DIAMETER | INCHES NOMINAL 0.562 |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AASB | FASTENER LENGTH | INCHES MINIMUM 0.990 AND INCHES MAXIMUM 1.020 |
| SFTT | SURFACE TREATMENT | OVERALL PASSIVATE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 77C707911P126 | 03538 | LOCKHEED MARTIN CORPORATION DIV RMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| EJ-51117 ITEM 50 | 20722 | THE ENTWISTLE COMPANY LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| EJ-51121 ITEM 14 | 20722 | THE ENTWISTLE COMPANY LLC | [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=5305004041178&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305004041178
- 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/5305-00-404-1178/
JSON: https://nsnexplorer.com/api/nsn/5305-00-404-1178.json