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1D4703 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 1.000 INCHES NOMINAL IN, head_height: 0.319 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM IN, fastener_length: 2.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-281-5164, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1D4703
NSN: 5306-00-281-5164
FSC: 5306
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleHEXAGON
grip_length1.000 INCHES NOMINAL IN
head_height0.319 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES MINIMUM IN
fastener_length2.500 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.612 INCHES MINIMUM AND 0.652 INCHES MAXIMUM IN
nominal_thread_diameter0.438 INCHES IN
minimum_tensile_strength150000 POUNDS PER SQUARE INCH LBS
NSN5306-00-281-5164
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1D4703 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
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
•
THREAD QUANTITY PER INCH: 14
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
180084Upgraded Successor
successor cross-reference
successor
MIL-S-1222Upgraded Successor
successor cross-reference
successor
MIL-DTL-1222Upgraded Successor
successor cross-reference
successor
PC186649Upgraded Successor
successor cross-reference
successor
5306000186649Upgraded Successor
successor cross-reference
successor
M1222RN12C240GFNZEUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1D4703?
1D4703 is a BOLT,MACHINE.
What parts can replace 1D4703?
There are 19 known substitutes for 1D4703: 180084, MIL-S-1222, MIL-DTL-1222 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1D4703?
1D4703 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-281-5164. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026