# NSN 5306-01-131-8451: Bolt, Shoulder

NSN 5306-01-131-8451 (also written 5306011318451; NIIN 01-131-8451) is a bolt, shoulder in Federal Supply Class 5306, Bolts. 8 manufacturer part numbers from 8 suppliers are on record. It was last purchased in Jul 2026.

## Identification

- NSN: 5306-01-131-8451 (5306011318451)
- NIIN: 01-131-8451 (011318451)
- Item name: BOLT,SHOULDER
- 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 C: needs engineering source approval; other sources must qualify first. (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 NOMINAL 0.445 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 3.400 |
| AASK | HEAD STYLE | — |
| AASL | HEAD DIAMETER | INCHES NOMINAL 2.000 |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.370 |
| AATB | WIDTH BETWEEN FLATS | INCHES NOMINAL 1.500 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.750 |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 43.0 |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-5000,4340 COND C |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 65219-07025-102 | 2V343 | APEX MANUFACTURING COMPANY, INC. DBA APEX MANUFACTURING CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 56937 | SPECIALTY TOOL COMPANY USA, LLC DBA SPECIALTY TOOL CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 63630 | SEANAIR, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 65780 | TEK PRECISION CO LIMITED | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 91145 | FLEET READINESS CENTER SOUTHWEST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 96916 | FLEET READINESS CENTER EAST DIV DEPARTMENT OF NAVY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 65219-07025-102 | 9E232 | CAMBRIDGE SPECIALTY CO. INC. DBA CAMBRIDGE SPECIALTY CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-07-29 | [SPE4A625PB799](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306011318451) | BOLT, SHOULDER | APEX MANUFACTURING COMPANY, INC. DBA APEX MANUFACTURING CO | $159,944.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306011318451&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306011318451
- 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/5306-01-131-8451/
JSON: https://nsnexplorer.com/api/nsn/5306-01-131-8451.json