PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1D4703Bolt,machine

Caterpillar Inc Div Caterpillar Defense · NSN 5306-00-281-5164 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-281-5164 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-281-5164. Primary manufacturer part number: 1D4703.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.319 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
  • Fastener Length: 2.500 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Length: 1.000 INCHES MINIMUM IN
  • Grip Length: 1.000 INCHES NOMINAL IN
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Width Between Flats: 0.612 INCHES MINIMUM AND 0.652 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1013 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1021 or Steel Comp 1022 or Steel Comp 1023 or Steel Comp 1025 or Steel Comp 1026 or Steel Comp 1029 or Steel Comp 1030 or Steel Comp 1033 or Steel Comp 1034 or Steel Comp 1035 or Steel Comp 1037 or Steel Comp 1038 or Steel Comp 1039 or Steel Comp 1040 or Steel Comp 1524 or Steel Comp 1527 or Steel Comp 1536 or Steel Comp 1541 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-281-5164, 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
NSN5306-00-281-5164
Primary Part Number1D4703
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Head Height0.319 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
Fastener Length2.500 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Length1.000 INCHES MINIMUM IN
Grip Length1.000 INCHES NOMINAL IN
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Width Between Flats0.612 INCHES MINIMUM AND 0.652 INCHES MAXIMUM IN
Thread Quantity Per Inch14
Features ProvidedUNFINISHED HEAD
Nominal Thread Diameter0.438 INCHES IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Thread Class2A A
Head StyleHEXAGON
Nondefinitive Spec/std Data1 TYPE AND 8 GRADE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1524 OR STEEL COMP 1527 OR STEEL COMP 1536 OR STEEL COMP 1541 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-018-0084
HAZMATNo
Verified Substitutes 12
Bolt,machine
5306-00-018-6649186649 SUCCESSOR
Bolt,machine
Rolls-Royce Solutions America Inc
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MIL-S-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1D4703 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
SUCCESSOR 5306-00-018-0084 Bolt,machine
5306-00-018-6649SUCCESSOR
BOLT,MACHINE
186649
5306-00-174-0532SUCCESSOR
BOLT,MACHINE
5306-00-174-0539SUCCESSOR
BOLT,MACHINE
5306-00-174-4166SUCCESSOR
BOLT,MACHINE
5306-00-174-9461SUCCESSOR
BOLT,MACHINE
5306-00-174-9463SUCCESSOR
BOLT,MACHINE
5306-00-174-9465SUCCESSOR
BOLT,MACHINE
5306-00-174-9466SUCCESSOR
BOLT,MACHINE
5306-00-174-9467SUCCESSOR
BOLT,MACHINE
5306-00-174-9468SUCCESSOR
BOLT,MACHINE
5306-00-174-9472SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-281-5164?

NSN 5306-00-281-5164 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 5306-00-281-5164?

NSN 5306-00-281-5164 has 3 cross-referenced part numbers: MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1D4703 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5306-00-281-5164?

There are 12 known substitutes for 5306-00-281-5164: 5306-00-018-0084, 5306-00-018-6649, 5306-00-174-0532 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1D4703?

Key specifications for 1D4703: Head Height: 0.319 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN; Fastener Length: 2.500 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Length: 1.000 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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