# NSN 5306-01-140-7990: Bolt, Close Tolerance

NSN 5306-01-140-7990 (also written 5306011407990; NIIN 01-140-7990) is a bolt, close tolerance in Federal Supply Class 5306, Bolts. 7 manufacturer part numbers from 7 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 5306-01-140-7990 (5306011407990)
- NIIN: 01-140-7990 (011407990)
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | INCHES MINIMUM 0.597 AND INCHES MAXIMUM 0.647 |
| AASB | FASTENER LENGTH | INCHES MINIMUM 5.619 AND INCHES MAXIMUM 5.649 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES MINIMUM 0.375 AND INCHES MAXIMUM 0.390 |
| AATB | WIDTH BETWEEN FLATS | INCHES MINIMUM 1.052 AND INCHES MAXIMUM 1.064 |
| AAUR | GRIP DIAMETER | INCHES MINIMUM 0.7485 AND INCHES MAXIMUM 0.7490 |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | ALL HOLES INCHES MINIMUM 0.141 AND INCHES MAXIMUM 0.151 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.750 |
| ANEE | GRIP LENGTH | INCHES MINIMUM 5.052 AND INCHES MAXIMUM 5.072 |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 28000 |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | ALL HOLES INCHES MINIMUM 0.481 AND INCHES MAXIMUM 0.531 |
| MATT | MATERIAL | OVERALL TITANIUM ALLOY UNS R56400 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 4928 |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| SS5011-12-81H | 06725 | SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 0UCY9 | M.S. AEROSPACE INC. DBA MS AEROSPACE INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 16258 | SPACE-LOK, INC. DBA SPACE-LOK INC DIV SPACE-LOK | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 4GP55 | ACUFAST AIRCRAFT PRODUCTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 78286 | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SS5011-12-81H | 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 |
| --- | --- | --- | --- | --- |
| 2026-08-26 | [SPE4A626C0084](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306011407990) | BOLT, CLOSE TOLERANC | — | $93,244.95 |
| 2026-08-26 | [SPE4A626C0084](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306011407990) | BOLT, CLOSE TOLERANC | — | $93,244.95 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306011407990&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306011407990
- 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/5306-01-140-7990/
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