PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35763-1021Bolt,machine

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-01-006-3879 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-006-3879 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-006-3879. Primary manufacturer part number: MS35763-1021.
Features
  • Bolt,machine — FSC 5306
  • Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Features Provided: FINISHED HEAD
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Thread Length: 1.094 INCHES MINIMUM IN
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-01-006-3879, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-01-006-3879
Primary Part NumberMS35763-1021
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Features ProvidedFINISHED HEAD
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Length1.094 INCHES MINIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Nominal Thread Diameter0.312 INCHES IN
Material Document and ClassificationSAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Thread Quantity Per Inch24
Locking FeatureDISTORTIONS BEARING SURFACE OF HEAD
Thread Class3A A
Head StyleDISHED HEXAGON
Fastener Length1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Head Height0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-021-4259
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MS35763-1021 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILB45912 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS35764-1273 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5306-00-021-4259 Bolt,machine
5306-00-905-4461SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-022-1937SUCCESSOR
BOLT,MACHINE
5306-00-022-1938SUCCESSOR
BOLT,MACHINE
5306-00-022-1939SUCCESSOR
BOLT,MACHINE
5306-00-022-1940SUCCESSOR
BOLT,MACHINE
5306-00-022-1941SUCCESSOR
BOLT,MACHINE
5306-00-022-1953SUCCESSOR
BOLT,MACHINE
5306-00-022-1957SUCCESSOR
BOLT,MACHINE
5306-00-022-1960SUCCESSOR
BOLT,MACHINE
5306-00-022-1962SUCCESSOR
BOLT,MACHINE
5306-00-022-2002SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-01-006-3879?

NSN 5306-01-006-3879 is a Bolt,machine, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-01-006-3879?

NSN 5306-01-006-3879 has 3 cross-referenced part numbers: MS35763-1021 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILB45912 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS35764-1273 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-01-006-3879?

There are 12 known substitutes for 5306-01-006-3879: 5306-00-905-4461, 5306-00-021-4259, 5306-00-022-1937 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35763-1021?

Key specifications for MS35763-1021: Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Features Provided: FINISHED HEAD; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-01-006-3879 still in active supply?

NSN 5306-01-006-3879 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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