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12286993-4 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12286993-4: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 0.248 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN, head_height: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-107-4757, 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
12286993-4
NSN: 5306-00-107-4757
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON W/HOLE
grip_length0.248 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
head_height0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.060 INCHES NOMINAL IN
hole_quantity4
thread_length0.620 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
hardness_rating248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
NSN5306-00-107-4757
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12286993-4 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
EXTENDED WASHER THICKNESS: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.620 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
HEAD HEIGHT0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
FASTENER LENGTH0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
THREAD LENGTH0.620 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
HARDNESS RATING248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
CRITICALITY CODE JUSTIFICATIONTEST
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 1
STD3060-13Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12286993-4?
12286993-4 is a BOLT,MACHINE.
What parts can replace 12286993-4?
There is 1 known substitute for 12286993-4: STD3060-13. Substitute compatibility should be verified for your specific system.
What is the NSN for 12286993-4?
12286993-4 is cataloged in the U.S. Government catalog under NSN 5306-00-107-4757. 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.