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Technical Data Sheet
PartsTable / COMPONENT / 1D4608
1D4608 ✓ 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 material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.562 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.500 INCHES MINIMUM IN, fastener_length: 2.750 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 5306-00-426-3402, 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
1D4608
NSN: 5306-00-426-3402
FSC: 5306
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.562 INCHES NOMINAL IN
thread_class2A A
thread_length1.500 INCHES MINIMUM IN
fastener_length2.750 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C NOMINAL OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats1.125 INCHES NOMINAL IN
minimum_yield_strength145000 POUNDS PER SQUARE INCH LBS
nominal_thread_diameter0.750 INCHES IN
NSN5306-00-426-3402
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1D4608 · 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
•
FEATURES PROVIDED: FINISHED HEAD
•
FASTENER LENGTH: 2.750 INCHES NOMINAL IN
•
MINIMUM YIELD STRENGTH: 145000 POUNDS PER SQUARE INCH LBS
•
THREAD CLASS: 2A A
•
WIDTH BETWEEN FLATS: 1.125 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 30.0 ROCKWELL C NOMINAL OVERALL
•
HEAD HEIGHT: 0.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDFINISHED HEAD
FASTENER LENGTH2.750 INCHES NOMINAL IN
MINIMUM YIELD STRENGTH145000 POUNDS PER SQUARE INCH LBS
THREAD CLASS2A A
WIDTH BETWEEN FLATS1.125 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING30.0 ROCKWELL C NOMINAL OVERALL
HEAD HEIGHT0.562 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.750 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 1D4608?
1D4608 is a BOLT,MACHINE.
What parts can replace 1D4608?
There are 19 known substitutes for 1D4608: 180084, MIL-S-1222, MIL-DTL-1222 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1D4608?
1D4608 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-426-3402. 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