# NSN 5306-01-522-0289: Bolt, Close Tolerance

NSN 5306-01-522-0289 (also written 5306015220289; NIIN 01-522-0289) is a bolt, close tolerance in Federal Supply Class 5306, Bolts. 8 manufacturer part numbers from 8 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5306-01-522-0289 (5306015220289)
- NIIN: 01-522-0289 (015220289)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | THREADS .0156 OVERSIZE, RESTRICTED TO REPAIR WORK ONLY |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES NOMINAL 0.323 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 0.758 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.140 |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.1885 AND INCHES MAXIMUM 0.1894 |
| AAZH | HEAD MINOR DIAMETER | INCHES MINIMUM 0.359 AND INCHES MAXIMUM 0.380 |
| AGAV | END ITEM IDENTIFICATION | F-16 AIRCRAFT |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.190 |
| ANEE | GRIP LENGTH | INCHES NOMINAL 0.188 |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 46.0 AND ROCKWELL C MAXIMUM 50.0 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE TREATMENT RESPONSE NAS672 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM |
| MATT | MATERIAL | OVERALL STEEL COMP H11 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S6487 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 120978-3-6R | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 120978-3-6R | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AIC596-3-6R | 06725 | SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7521-3-6R | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H411-3-6R | 17446 | HUCK INTERNATIONAL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PBF7521-3-6R | 27624 | SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| VCG0009-3-6R | 06710 | VALLEY-TODECO, INC. DBA ARCONIC FASTENING SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| VS3133-3-6R | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-01 | [SPE4A626PT402](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306015220289) | BOLT, CLOSE TOLERANC | — | $482.40 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306015220289&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306015220289
- 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.

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