# NSN 5305-01-227-1639: Screw, Cap, Socket Head

NSN 5305-01-227-1639 (also written 5305012271639; NIIN 01-227-1639) 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 Sep 2026.

## Identification

- NSN: 5305-01-227-1639 (5305012271639)
- NIIN: 01-227-1639 (012271639)
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES MINIMUM 1.750 AND INCHES MAXIMUM 3.000 |
| AASB | FASTENER LENGTH | INCHES MINIMUM 2.920 AND INCHES MAXIMUM 3.000 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | INCHES MINIMUM 0.921 AND INCHES MAXIMUM 0.937 |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.616 AND INCHES MAXIMUM 0.625 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.625 |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.500 AND INCHES MAXIMUM 0.505 |
| CMLP | THREAD QUANTITY PER INCH | 11 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 170000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 38.0 AND ROCKWELL C MAXIMUM 45.0 |
| CQHQ | MINIMUM YIELD STRENGTH | POUNDS PER SQUARE INCH 150000 |
| MATT | MATERIAL | OVERALL STEEL |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLASS 2 |
| THSD | THREAD SERIES DESIGNATOR | UNRC |
| ZZZK | SPECIFICATION/STANDARD DATA | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS1352 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NAS1352-10-48P | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE4A626P00P8](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305012271639) | SCREW, CAP, SOCKET HEAD | ALAMO AIRCRAFT, LTD. | $360.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305012271639&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305012271639
- 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/5305-01-227-1639/
JSON: https://nsnexplorer.com/api/nsn/5305-01-227-1639.json