# NSN 5305-00-639-0005: Screw, Tapping

NSN 5305-00-639-0005 (also written 5305006390005; NIIN 00-639-0005) is a screw, tapping in Federal Supply Class 5305, Screws. 3 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5305-00-639-0005 (5305006390005)
- NIIN: 00-639-0005 (006390005)
- Item name: SCREW,TAPPING
- 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 2026-10-20)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CRGF | NONMACHINE THREAD STYLE | — |
| CBBL | FEATURES PROVIDED | CASE-HARDENED |
| AASB | FASTENER LENGTH | INCHES MINIMUM 0.719 AND INCHES MAXIMUM 0.781 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | INCHES MINIMUM 0.348 AND INCHES MAXIMUM 0.385 |
| CTYF | NONMACHINE NOMINAL THREAD DIAMETER | INCHES 0.190 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416,TYE 2,CLASS 3 |
| MATT | MATERIAL | OVERALL STEEL |
| CRSQ | COUNTERSINK ANGLE | DEGREES NOMINAL 100.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| PK89XA10-12 | 45722 | USM CORP SUB OF EMHART INDUSTRIES INC PARKER-KALON FASTENER DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| STSBL001A0-12 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| STSBL001A10-12 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-19 | [SPE4A627P1856](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305006390005) | SCREW, TAPPING | POLYTECH DEFENSE SPARES LLC | $12,981.92 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5305006390005&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5305006390005
- 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/5305-00-639-0005/
JSON: https://nsnexplorer.com/api/nsn/5305-00-639-0005.json