PartsTable
Technical Data Sheet
1D4539 ✓ 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, grip_length: 1.625 INCHES NOMINAL IN, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.875 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-226-4835, 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
1D4539
NSN: 5306-00-226-4835
FSC: 5306
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length1.625 INCHES NOMINAL IN
head_height0.250 INCHES NOMINAL IN
thread_class2A A
thread_length0.875 INCHES MINIMUM IN
fastener_length2.500 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C NOMINAL OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.500 INCHES NOMINAL IN
minimum_yield_strength145000 POUNDS PER SQUARE INCH LBS
NSN5306-00-226-4835
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1D4539 · 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
THREAD DIRECTION: RIGHT-HAND
WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 18
FEATURES PROVIDED: FINISHED HEAD
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH18
FEATURES PROVIDEDFINISHED HEAD
NOMINAL THREAD DIAMETER0.312 INCHES IN
END ITEM IDENTIFICATIONMEDIUM MINE PROTECTED VEHICLE - MMPV; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAEJ429GRADE8 ASSN STD 15TH MATERIAL RESPONSE OR ASTMA354GRADEBD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
MILB857Upgraded Successor
successor cross-reference
successor
H2212PC9Upgraded Successor
successor cross-reference
successor
RGR182CRUpgraded Successor
successor cross-reference
successor
H2311PC59Upgraded Successor
successor cross-reference
successor
4594493-ITEM-12Upgraded Successor
successor cross-reference
successor
49M68-58-01-IT-12Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1D4539?
1D4539 is a BOLT,MACHINE.
What parts can replace 1D4539?
There are 27 known substitutes for 1D4539: MILB857, H2212PC9, RGR182CR and 24 more. Substitute compatibility should be verified for your specific system.
Is 1D4539 still available?
1D4539 is currently cancelled.
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