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8365474 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8365474: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OVERALL, head_style: HEXAGON, grip_length: 4.220 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN, head_height: 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.440 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-174-4182, 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
8365474
NSN: 5306-00-174-4182
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OVERALL
head_styleHEXAGON
grip_length4.220 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
head_height0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
thread_class3A A
thread_length0.440 INCHES MINIMUM IN
fastener_length4.660 INCHES MINIMUM AND 4.690 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
features_providedFINISHED HEAD
width_between_flats0.436 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
minimum_tensile_strength125000 POUNDS PER SQUARE INCH LBS
NSN5306-00-174-4182
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8365474 · 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: 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.660 INCHES MINIMUM AND 4.690 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.440 INCHES MINIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
•
GRIP LENGTH: 4.220 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
FASTENER LENGTH4.660 INCHES MINIMUM AND 4.690 INCHES MAXIMUM IN
THREAD LENGTH0.440 INCHES MINIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
GRIP LENGTH4.220 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.436 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 1
D42-105Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 8365474?
8365474 is a BOLT,MACHINE.
What parts can replace 8365474?
There is 1 known substitute for 8365474: D42-105. Substitute compatibility should be verified for your specific system.
What is the NSN for 8365474?
8365474 is cataloged in the U.S. Government catalog under NSN 5306-00-174-4182. 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.