# NSN 5306-00-406-0512: Bolt, Close Tolerance

NSN 5306-00-406-0512 (also written 5306004060512; NIIN 00-406-0512) is a bolt, close tolerance in Federal Supply Class 5306, Bolts. 3 manufacturer part numbers from 3 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 5306-00-406-0512 (5306004060512)
- NIIN: 00-406-0512 (004060512)
- Item name: BOLT,CLOSE TOLERANCE
- 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 P: the government does not own the rights to the data needed for more sources. (observed 2026-11-03)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 150000 |
| AATC | EXTENDED WASHER DIAMETER | INCHES MINIMUM 0.428 AND INCHES MAXIMUM 0.438 |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.2485 AND INCHES MAXIMUM 0.2495 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.250 |
| AASA | THREAD LENGTH | INCHES MINIMUM 0.470 AND INCHES MAXIMUM 0.500 |
| AATB | WIDTH BETWEEN FLATS | INCHES MINIMUM 0.306 AND INCHES MAXIMUM 0.315 |
| ANEE | GRIP LENGTH | INCHES NOMINAL 0.312 |
| AASK | HEAD STYLE | — |
| MATT | MATERIAL | OVERALL STEEL CORROSION RESISTING |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AATD | EXTENDED WASHER THICKNESS | INCHES MINIMUM 0.059 AND INCHES MAXIMUM 0.079 |
| FEAT | SPECIAL FEATURES | ALL THD ELEMENT DIAMETERS REDUCED 0.003 IN. |
| AASB | FASTENER LENGTH | INCHES MINIMUM 0.782 AND INCHES MAXIMUM 0.812 |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.290 AND INCHES MAXIMUM 0.310 |
| CMLP | THREAD QUANTITY PER INCH | 28 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 72346-4-5 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 72346-4-5 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AIC1615W-4-5 | 06725 | SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-T-8050 | 70 | 2026-11-10 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306004060512&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306004060512&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306004060512
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/5306-00-406-0512/
JSON: https://nsnexplorer.com/api/nsn/5306-00-406-0512.json