# NSN 5305-01-508-5889: Screw, Cap, Socket Head

NSN 5305-01-508-5889 (also written 5305015085889; NIIN 01-508-5889) is a screw, cap, socket head in Federal Supply Class 5305, Screws. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Nov 2026.

## Identification

- NSN: 5305-01-508-5889 (5305015085889)
- NIIN: 01-508-5889 (015085889)
- 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 L: annual buy value is below the screening threshold. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AASL | HEAD DIAMETER | INCHES NOMINAL 0.938 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.625 |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.500 |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 170000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 45.0 |
| MATT | MATERIAL | OVERALL STEEL |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.500 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AASA | THREAD LENGTH | INCHES NOMINAL 1.750 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 2.250 |
| AASK | HEAD STYLE | — |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 9738-0380 | 1R5C8 | HEIL TRAILER INTERNATIONAL, LLC DBA HEIL DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-03 | [SPE4A727D5063](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015085889) | SCREW, CAP, SOCKET HEAD | PIONEER INDUSTRIES, LLC | $349,999.99 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305015085889&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015085889
- 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/5305-01-508-5889/
JSON: https://nsnexplorer.com/api/nsn/5305-01-508-5889.json