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6863073 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6863073: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: DEE CHAMFER, grip_length: 0.250 INCHES MAXIMUM IN, head_height: 0.150 INCHES NOMINAL IN, head_diameter: 0.510 INCHES NOMINAL IN, thread_length: 0.938 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-879-2741, 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
6863073
NSN: 5306-00-879-2741
FSC: 5306 — Bolts
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleDEE CHAMFER
grip_length0.250 INCHES MAXIMUM IN
head_height0.150 INCHES NOMINAL IN
head_diameter0.510 INCHES NOMINAL IN
thread_length0.938 INCHES MAXIMUM IN
fastener_length1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
nominal_thread_diameter0.247 INCHES IN
thread_quantity_per_inch28
NSN5306-00-879-2741
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6863073 · 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: 0.150 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.192 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.938 INCHES MAXIMUM IN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.247 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: DEE CHAMFER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES NOMINAL IN
FASTENER LENGTH1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO FLAT0.192 INCHES MAXIMUM IN
THREAD LENGTH0.938 INCHES MAXIMUM IN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.247 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEDEE CHAMFER
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.250 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
BLT1893Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6863073?
6863073 is a BOLT,MACHINE.
What parts can replace 6863073?
There is 1 known substitute for 6863073: BLT1893. Substitute compatibility should be verified for your specific system.
What is the NSN for 6863073?
6863073 is cataloged in the U.S. Government catalog under NSN 5306-00-879-2741. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.