# NSN 5305-01-556-0483: Screw, Cap, Socket Head

NSN 5305-01-556-0483 (also written 5305015560483; NIIN 01-556-0483) is a screw, cap, socket head in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5305-01-556-0483 (5305015560483)
- NIIN: 01-556-0483 (015560483)
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.875 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 0.875 |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.156 |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD CAP SCREW |
| FEAT | SPECIAL FEATURES | BLACK OXIDE ALLOY STEEL OFFERS MILD RESISTANCE AND HAS SOME LUBRICATION QUALITIES; ITEM IS FULLY THREADED |
| MATT | MATERIAL | OVERALL STEEL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.190 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AGAV | END ITEM IDENTIFICATION | AN/BLQ10 A (V) 1 SYSTEM; AN/BLQ10 A (V) 1 SSN774 SYSTEM |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.190 |
| AATB | WIDTH BETWEEN FLATS | INCHES NOMINAL 0.312 |
| AASK | HEAD STYLE | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 91251A346 | 2V507 | MCMASTER-CARR SUPPLY COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 91251A346 | 97852 | STAR STAINLESS SCREW CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-08-19 | $0.30 | 100 | ALLIED TOOLS, INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015560483) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-19 | [SPE4A626V322A](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015560483) | SCREW, CAP, SOCKET HE | ALLIED TOOLS, INC | $30.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305015560483&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305015560483
- 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/5305-01-556-0483/
JSON: https://nsnexplorer.com/api/nsn/5305-01-556-0483.json