# NSN 5305-01-643-6066: Screw, Cap, Socket Head

NSN 5305-01-643-6066 (also written 5305016436066; NIIN 01-643-6066) 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 Sep 2026.

## Identification

- NSN: 5305-01-643-6066 (5305016436066)
- NIIN: 01-643-6066 (016436066)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AASB | FASTENER LENGTH | INCHES NOMINAL 1.750 |
| AASK | HEAD STYLE | — |
| AASA | THREAD LENGTH | INCHES MINIMUM 1.250 |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.164 |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 0.1406 |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 70000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL B NOMINAL 70.0 |
| FEAT | SPECIAL FEATURES | THREAD LENGTH MAY VARY FROM 0.750" TO 1.250" |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| THSD | THREAD SERIES DESIGNATOR | UNS |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.164 |
| AASL | HEAD DIAMETER | INCHES NOMINAL 0.270 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 8591651 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 92185A206 | 3A054 | MCMASTER-CARR SUPPLY CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-08 | [SPE4A626V195C](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016436066) | SCREW, CAP, SOCKET HE | ALLIED TOOLS, INC | $113.10 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305016436066&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305016436066
- 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/5305-01-643-6066/
JSON: https://nsnexplorer.com/api/nsn/5305-01-643-6066.json