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12257364 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12257364: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8640 OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.530 INCHES NOMINAL IN, fastener_length: 3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-053-8370, 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
12257364
NSN: 5306-01-053-8370
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8640 OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class2A A
thread_length0.530 INCHES NOMINAL IN
fastener_length3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
NSN5306-01-053-8370
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12257364 · 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: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.530 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A331 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A331 ASSN STD 4TH MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
FASTENER LENGTH3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM IN
THREAD LENGTH0.530 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A331 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A331 ASSN STD 4TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
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

No substitute or cross-reference records for this part.

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 12257364?
12257364 is a BOLT,MACHINE.
What is the NSN for 12257364?
12257364 is cataloged in the U.S. Government catalog under NSN 5306-01-053-8370. 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.