# NSN 5305-01-681-0551: Screw, Cap, Socket Head

NSN 5305-01-681-0551 (also written 5305016810551; NIIN 01-681-0551) 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: 5305-01-681-0551 (5305016810551)
- NIIN: 01-681-0551 (016810551)
- 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 H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | 2320-01-534-1887 |
| AHYM | NOMINAL THREAD DIAMETER | MILLIMETERS 5.0 |
| ASDB | WIDTH ACROSS FLATS | MILLIMETERS MINIMUM 4.020 AND MILLIMETERS MAXIMUM 4.095 |
| CQQR | THREAD PITCH IN MILLIMETERS | 0.80 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCR, CAP, SOC, TAB C8.8 ZP |
| THSD | THREAD SERIES DESIGNATOR | M |
| AASU | HEAD HEIGHT | MILLIMETERS MINIMUM 4.82 AND MILLIMETERS MAXIMUM 5.00 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AAJD | THREAD CLASS | 6G |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | MILLIMETERS NOMINAL 12.0 |
| AASL | HEAD DIAMETER | MILLIMETERS MINIMUM 8.28 AND MILLIMETERS MAXIMUM 8.50 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 4466684001 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9988271 | 34914 | HIAB USA INC | [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 | $7.50 | 4 | 13F59 | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016810551) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-19 | [SPE4A626V319Z](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016810551) | SCREW, CAP, SOCKET HEAD | — | $30.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305016810551&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016810551
- 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/5305-01-681-0551/
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