# NSN 5306-00-988-9921: Bolt, Square Neck

NSN 5306-00-988-9921 (also written 5306009889921; NIIN 00-988-9921) is a bolt, square neck in Federal Supply Class 5306, Bolts. 3 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5306-00-988-9921 (5306009889921)
- NIIN: 00-988-9921 (009889921)
- Item name: BOLT,SQUARE NECK
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.875 |
| CRSQ | COUNTERSINK ANGLE | DEGREES NOMINAL 80.0 |
| CWXQ | NECK WIDTH | INCHES NOMINAL 0.867 |
| MATT | MATERIAL | OVERALL STEEL |
| AASB | FASTENER LENGTH | INCHES NOMINAL 2.750 |
| AGQB | NECK LENGTH | INCHES NOMINAL 0.530 |
| AASL | HEAD DIAMETER | INCHES NOMINAL 1.389 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 32.0 AND ROCKWELL C MAXIMUM 38.0 |
| CQHQ | MINIMUM YIELD STRENGTH | POUNDS PER SQUARE INCH 124000 |
| AASK | HEAD STYLE | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 6F0196 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6F0196 | FAJ85 | BLUMAQ | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6F196 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-29 | [SPE7LX21D0087/SPE7LX26FBF6V](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $7.36 |
| 2026-09-29 | [SPE7LX21D0087/SPE7LX26FBF6W](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $7.36 |
| 2026-09-29 | [SPE7LX21D0087/SPE7LX26FBF7B](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $7.36 |
| 2026-09-28 | [SPE7LX21D0087/SPE7LX26FBD5N](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $110.40 |
| 2026-09-28 | [SPE7LX21D0087/SPE7LX26FBD7E](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $110.40 |
| 2026-09-28 | [SPE7LX21D0087/SPE7LX26FBD7X](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921) | BOLT, SQUARE NECK | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $110.40 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306009889921&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306009889921
- 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/5306-00-988-9921/
JSON: https://nsnexplorer.com/api/nsn/5306-00-988-9921.json