# NSN 5305-01-658-6958: Screw, Cap, Hexagon Head

NSN 5305-01-658-6958 (also written 5305016586958; NIIN 01-658-6958) is a screw, cap, hexagon head in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5305-01-658-6958 (5305016586958)
- NIIN: 01-658-6958 (016586958)
- 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 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | PLAIN END - OPTIONAL-TYPE SELF-LOCKING |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CAP HEX (FINISHED HEX BOLT) |
| AGAV | END ITEM IDENTIFICATION | 13055121 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.312 |
| AATB | WIDTH BETWEEN FLATS | INCHES MINIMUM 0.489 AND INCHES MAXIMUM 0.500 |
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.875 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 1.500 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.195 AND INCHES MAXIMUM 0.211 |
| MATT | MATERIAL | OVERALL STEEL UNS K04100 |
| SFTT | SURFACE TREATMENT | OVERALL ZINC AND CHROMATE |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| AES01C312A50AW9A86 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B18.24-2004 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE4A627P0333](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016586958) | SCREW, CAP, HEXAGON H | KAREN CARLISLE DBA B & K AEROSPACE | $174.56 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305016586958&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016586958
- 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/5305-01-658-6958/
JSON: https://nsnexplorer.com/api/nsn/5305-01-658-6958.json