# NSN 5306-01-298-0640: Bolt, Internally Relieved Body

NSN 5306-01-298-0640 (also written 5306012980640; NIIN 01-298-0640) is a bolt, internally relieved body in Federal Supply Class 5306, Bolts. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 5306-01-298-0640 (5306012980640)
- NIIN: 01-298-0640 (012980640)
- Item name: BOLT,INTERNALLY RELIEVED BODY
- 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 T: handled under qualified products list procedures. (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 1.254 AND INCHES MAXIMUM 1.274 |
| AASB | FASTENER LENGTH | INCHES NOMINAL 4.014 |
| AASK | HEAD STYLE | — |
| AASU | HEAD HEIGHT | INCHES NOMINAL 0.808 |
| AATB | WIDTH BETWEEN FLATS | INCHES NOMINAL 0.9375 |
| AATC | EXTENDED WASHER DIAMETER | INCHES MINIMUM 1.428 AND INCHES MAXIMUM 1.438 |
| AATD | EXTENDED WASHER THICKNESS | INCHES NOMINAL 0.198 |
| AAWX | CONCENTRIC HOLE DEPTH | INCHES MAXIMUM 0.260 |
| AAXC | CONCENTRIC HOLE DIAMETER | INCHES MAXIMUM 0.187 |
| AHYM | NOMINAL THREAD DIAMETER | INCHES 0.875 |
| CBBL | FEATURES PROVIDED | CASE-HARDENED |
| CMLP | THREAD QUANTITY PER INCH | 14 |
| CQBC | MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 180000 |
| CQFM | HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 39.0 AND ROCKWELL C MAXIMUM 43.0 |
| FEAT | SPECIAL FEATURES | SURFACE FINISH ON SHANK AND BEARING SURFACE OF HEAD 32.0 MICROINCHES |
| MATT | MATERIAL | OVERALL STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-8503 |
| SFTT | SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TY 2 CL 3 |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MS21250-14044 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5306012980640&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5306012980640
- 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/5306-01-298-0640/
JSON: https://nsnexplorer.com/api/nsn/5306-01-298-0640.json