# NSN 5305-01-717-6431: Screw, Close Tolerance

NSN 5305-01-717-6431 (also written 5305017176431; NIIN 01-717-6431) is a screw, close tolerance in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5305-01-717-6431 (5305017176431)
- NIIN: 01-717-6431 (017176431)
- Item name: SCREW,CLOSE TOLERANCE
- 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 2026-11-04)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | INCHES NOMINAL 0.464 |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.99 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.403 |
| AASB | FASTENER LENGTH | INCHES MINIMUM 1.853 AND INCHES MAXIMUM 1.883 |
| AAJD | THREAD CLASS | 3A |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.2641 AND INCHES MAXIMUM 0.2651 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AGAV | END ITEM IDENTIFICATION | B1-BACFT |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.2500 |
| ANEE | GRIP LENGTH | INCHES MINIMUM 1.455 AND INCHES MAXIMUM 1.475 |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SHEAR, 100 DEGREE FLUSH HEAD |
| MATT | MATERIAL | OVERALL TITANIUM ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL NATIONAL STD SINGLE MATERIAL RESPONSE A-S4928 OR NATIONAL STD SINGLE MATERIAL RESPONSE A-S4967 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NAS1580 | 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/) |
| NAS1580V4R17X | 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 |
| --- | --- | --- | --- | --- |
| 2026-08-11 | [SPE4A625PJ026](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305017176431) | SCREW, CLOSE TOLERAN | ARIZONA AERO FASTENERS, INC DBA ARIZONA AERO FASTENERS INC | $6,995.10 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305017176431&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305017176431
- 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/5305-01-717-6431/
JSON: https://nsnexplorer.com/api/nsn/5305-01-717-6431.json