# NSN 5305-01-273-4519: Screw, Cap, Socket Head

NSN 5305-01-273-4519 (also written 5305012734519; NIIN 01-273-4519) is a screw, cap, socket head in Federal Supply Class 5305, Screws. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5305-01-273-4519 (5305012734519)
- NIIN: 01-273-4519 (012734519)
- 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 Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | MILLIMETERS NOMINAL 14.0 |
| AASB | FASTENER LENGTH | MILLIMETERS NOMINAL 16.0 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | MILLIMETERS MINIMUM 8.27 AND MILLIMETERS MAXIMUM 8.50 |
| AASU | HEAD HEIGHT | MILLIMETERS MINIMUM 4.86 AND MILLIMETERS MAXIMUM 5.00 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | MILLIMETERS 5.0 |
| ASDB | WIDTH ACROSS FLATS | MILLIMETERS NOMINAL 5.0 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 75000 |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.8 |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 6G |
| MATT | MATERIAL | OVERALL STEEL COMP 304 |
| THSD | THREAD SERIES DESIGNATOR | M |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 4006466 | 1RZR5 | FLYER DEFENSE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 91292A126 | 39428 | MCMASTER-CARR SUPPLY CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AL4006466 | 0F875 | GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE4A626V278Y](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305012734519) | SCREW, CAP, SOCKET HEAD | CAVANAUGH GOVERNMENT GROUP, LLC | $106.95 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305012734519&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305012734519
- 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/5305-01-273-4519/
JSON: https://nsnexplorer.com/api/nsn/5305-01-273-4519.json