# NSN 5306-00-443-1901: Bolt, Internal Wrenching

NSN 5306-00-443-1901 (also written 5306004431901; NIIN 00-443-1901) is a bolt, internal wrenching in Federal Supply Class 5306, Bolts. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5306-00-443-1901 (5306004431901)
- NIIN: 00-443-1901 (004431901)
- Item name: BOLT,INTERNAL WRENCHING
- Federal Supply Class: [FSC 5306 Bolts](https://nsnexplorer.com/fsc/5306/)
- Federal Supply Group: [FSG 53](https://nsnexplorer.com/group/53/)
- Acquisition method suffix code: AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | WITH PELLET TYPE ELEMENT IN THREADS FOR LOCKING FEATURE |
| CRHC | HOLE CONFIGURATION STYLE | — |
| AASA | THREAD LENGTH | INCHES MINIMUM 0.538 AND INCHES MAXIMUM 0.588 |
| AASB | FASTENER LENGTH | INCHES MINIMUM 2.673 AND INCHES MAXIMUM 2.703 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416,TY 2,CL 3 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| ASDB | WIDTH ACROSS FLATS | INCHES MINIMUM 0.219 AND INCHES MAXIMUM 0.221 |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 34.0 AND ROCKWELL C MAXIMUM 40.0 |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| MATT | MATERIAL | OVERALL STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 160000 |
| BQDM | HOLE TYPE | DRILLED |
| AASL | HEAD DIAMETER | INCHES MINIMUM 0.521 AND INCHES MAXIMUM 0.531 |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.312 |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 0.037 |
| ABQZ | INTERNAL DRIVE STYLE | — |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.312 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-8503 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-6098 OR MIL SPEC 5TH MATERIAL RESPONSE -IL-S-6049 |
| ASXK | HOLE QUANTITY | 6 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NKS20005H34 | 17910 | NYLOK LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NKS20005H34 | 26233 | NYLOK LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-27 | [SPE4A626P0AZK](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306004431901) | BOLT, INTERNAL WRENC | — | $4,052.80 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306004431901&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306004431901
- 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/5306-00-443-1901/
JSON: https://nsnexplorer.com/api/nsn/5306-00-443-1901.json