PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 8509-4
8509-4 ✓ 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 SHAFT,AXLE,AUTOMOTIVE is a the manufacturer industrial component. Key specifications include unit_type: MOUNTED, current_type: DC, mounting_type: FLANGE, movement_type: ELECTRICAL, reset_feature: NOT PROVIDED, indicator_type: DIAL-COUNTER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-010-6280, 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
8509-4
NSN: 5306-00-010-6280
FSC: 5306
CAGE: 08683 — BROCKWAY MOTOR TRUCKS DIV OF MACK TRUCKS INC (USA)
SPECIFICATIONS
unit_typeMOUNTED
current_typeDC
mounting_typeFLANGE
movement_typeELECTRICAL
reset_featureNOT PROVIDED
indicator_typeDIAL-COUNTER
mounting_methodSEMIFLUSH
background_colorBLACK
measurement_unitHOURS
hermetic_protectionPROVIDED
maximum_measurement9999.9
smallest_increment_indicated0.1
NSN5306-00-010-6280
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8509-4 · 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 QUANTITY PER INCH: 24
•
MINIMUM YIELD STRENGTH: 169000 POUNDS PER SQUARE INCH LBS
•
FEATURES PROVIDED: FINISHED HEAD
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
HARDNESS RATING: 100.0 ROCKWELL B NOMINAL OVERALL
•
WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.875 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
MINIMUM YIELD STRENGTH169000 POUNDS PER SQUARE INCH LBS
FEATURES PROVIDEDFINISHED HEAD
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF
HARDNESS RATING100.0 ROCKWELL B NOMINAL OVERALL
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD LENGTH0.875 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
8509-4Upgraded Successor
successor cross-reference
successor
A3144-3-108Upgraded Successor
successor cross-reference
successor
A3044A3-92Upgraded Successor
successor cross-reference
successor
106280Interchangeable
interchangeable cross-reference
interchangeable
105-6410Interchangeable
interchangeable cross-reference
interchangeable
96-9360Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8509-4?
8509-4 is a SHAFT,AXLE,AUTOMOTIVE.
What parts can replace 8509-4?
There are 16 known substitutes for 8509-4: 8509-4, A3144-3-108, A3044A3-92 and 13 more. Substitute compatibility should be verified for your specific system.
Is 8509-4 still available?
8509-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026