PartsTable
Technical Data Sheet
Download PDF

7521457 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

7521457: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 0.178 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN, head_height: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-752-1457, 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
7521457
NSN: 5306-00-752-1457
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length0.178 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
head_height0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class2A A
thread_length0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
fastener_length1.084 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
locking_featureDISTORTIONS BEARING SURFACE OF HEAD
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.610 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
nominal_thread_diameter0.438 INCHES IN
NSN5306-00-752-1457
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7521457 · 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: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.084 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.178 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
FASTENER LENGTH1.084 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
THREAD LENGTH0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.178 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.610 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
LOCKING FEATUREDISTORTIONS BEARING SURFACE OF HEAD
SUBSTITUTES & CROSS-REFERENCES 3
6763653Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
62.71.022Reference document
Same NSN cross-reference
Reference document — Secondary reference
5306007521457Reference 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
Ready to buy 7521457?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7521457?
7521457 is a BOLT,MACHINE.
What parts can replace 7521457?
There are 3 known substitutes for 7521457: 6763653, 62.71.022, 5306007521457. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521457?
7521457 is cataloged in the U.S. Government catalog under NSN 5306-00-752-1457. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7521457

✓ 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.