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7521228 — BOLT,U

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

7521228: BOLT,U.

The BOLT,U is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A A, thread_length: 0.937 INCHES NOMINAL IN, hardness_rating: 253.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM OVERALL, style_designator: SQUARE BEND, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-752-1228, 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
7521228
NSN: 5306-00-752-1228
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_length0.937 INCHES NOMINAL IN
hardness_rating253.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM OVERALL
style_designatorSQUARE BEND
thread_directionRIGHT-HAND
features_providedCASEHARDENED
nominal_thread_diameter0.500 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNF
inside_distance_between_shanks2.531 INCHES NOMINAL IN
material_document_and_classificationSAE 3135H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5306-00-752-1228
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7521228 · 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
•
INSIDE DISTANCE BETWEEN SHANKS: 2.531 INCHES NOMINAL IN
•
THREAD LENGTH: 0.937 INCHES NOMINAL IN
•
HARDNESS RATING: 253.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM OVERALL
•
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END: 2.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SQUARE BEND
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 3135H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
FEATURES PROVIDED: CASEHARDENED
TECHNICAL CHARACTERISTICS
INSIDE DISTANCE BETWEEN SHANKS2.531 INCHES NOMINAL IN
THREAD LENGTH0.937 INCHES NOMINAL IN
HARDNESS RATING253.0 BRINELL HULTGREN MINIMUM AND 319.0 BRINELL HULTGREN MAXIMUM OVERALL
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END2.750 INCHES NOMINAL IN
STYLE DESIGNATORSQUARE BEND
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 3135H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
FEATURES PROVIDEDCASEHARDENED
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7521228?
7521228 is a BOLT,U.
What is the NSN for 7521228?
7521228 is cataloged in the U.S. Government catalog under NSN 5306-00-752-1228. This indicates validated use in U.S. government and defense supply chains.
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