PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3604ABolt,machine

Caterpillar Inc Div Caterpillar Defense · NSN 5306-00-426-4624 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-426-4624 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-426-4624. Primary manufacturer part number: 3604A.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.562 INCHES NOMINAL IN
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Thread Length: 1.750 INCHES MINIMUM IN
  • Minimum Yield Strength: 145000 POUNDS PER SQUARE INCH LBS
  • Material Document and Classification: MIL-S-1222,GR 8 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
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 5306-00-426-4624, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 17 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: Active.

Technical Specifications
ParameterValue
NSN5306-00-426-4624
Primary Part Number3604A
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Head Height0.562 INCHES NOMINAL IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Thread DirectionRIGHT-HAND
Thread Length1.750 INCHES MINIMUM IN
Minimum Yield Strength145000 POUNDS PER SQUARE INCH LBS
Material Document and ClassificationMIL-S-1222,GR 8 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
Nondefinitive Spec/std Data1 TYPE AND 8 GRADE
Thread Quantity Per Inch16
MaterialSTEEL OVERALL
Fastener Length4.500 INCHES NOMINAL IN
Features ProvidedFINISHED HEAD
Width Between Flats1.125 INCHES NOMINAL IN
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Head StyleHEXAGON
Nominal Thread Diameter0.750 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-270-9422
HAZMATNo
Verified Substitutes 12
5306-00-227-05820.75010UNC2A1.750T1G5BAC SUCCESSOR
Bolt,machine
Nucor Fastener
5306-00-227-0601306-40172 SUCCESSOR
Bolt,machine
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
Bolt,machine
5306-00-281-51641D4703 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-426-34021D4608 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
5306-00-732-77146C-3210 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3604A PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
MIL-S-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5306-00-270-9422 Bolt,machine
5306-00-227-0582SUCCESSOR
BOLT,MACHINE
0.75010UNC2A1.750T1G5BAC
5306-00-227-0601SUCCESSOR
BOLT,MACHINE
306-40172
5306-00-281-5164SUCCESSOR
BOLT,MACHINE
1D4703
5306-00-299-2342SUCCESSOR
BOLT,MACHINE
5306-00-299-2369SUCCESSOR
BOLT,MACHINE
5306-00-299-2378SUCCESSOR
BOLT,MACHINE
5306-00-426-3402SUCCESSOR
BOLT,MACHINE
1D4608
5306-00-732-7714SUCCESSOR
BOLT,MACHINE
6C-3210
5306-01-282-7489SUCCESSOR
BOLT,MACHINE
5306-01-323-5536SUCCESSOR
BOLT,MACHINE
5306-01-327-3526SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-426-4624?

NSN 5306-00-426-4624 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-426-4624?

NSN 5306-00-426-4624 has 3 cross-referenced part numbers: MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3604A (Caterpillar Inc Div Caterpillar Defense), MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-426-4624?

There are 12 known substitutes for 5306-00-426-4624: 5306-00-227-0582, 5306-00-227-0601, 5306-00-270-9422 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3604A?

Key specifications for 3604A: Head Height: 0.562 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Thread Direction: RIGHT-HAND; Thread Length: 1.750 INCHES MINIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

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