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2910U21 — STUD,BALL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2910U21: STUD,BALL.

The STUD,BALL is a the manufacturer industrial component. Key specifications include material: STEEL, body_length: 1.625 INCHES NOMINAL IN, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, head_diameter: 1.965 INCHES MINIMUM AND 1.968 INCHES MAXIMUM IN, neck_diameter: 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN, thread_length: 1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-733-2452, 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
2910U21
NSN: 5307-00-733-2452
FSC: 5307 — Studs
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL
body_length1.625 INCHES NOMINAL IN
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
head_diameter1.965 INCHES MINIMUM AND 1.968 INCHES MAXIMUM IN
neck_diameter1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
thread_length1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_length6.495 INCHES MINIMUM AND 6.505 INCHES MAXIMUM IN
special_features0.156 IN. BY 45.0 DEG CHAMFER END OF SHANK IN
style_designatorBALL
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
features_providedCASEHARDENED
nominal_thread_size1.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
NSN5307-00-733-2452
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2910U21 · 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
•
COTTER PIN HOLE DIAMETER: 0.201 INCHES NOMINAL FIRST HOLE IN
•
THREAD LENGTH: 1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN
•
TAPER MINOR DIAMETER: 1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BALL
•
FEATURES PROVIDED: CASEHARDENED
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
NOMINAL THREAD SIZE: 1.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
COTTER PIN HOLE DIAMETER0.201 INCHES NOMINAL FIRST HOLE IN
THREAD LENGTH1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN
TAPER MINOR DIAMETER1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN
STYLE DESIGNATORBALL
OVERALL LENGTH6.495 INCHES MINIMUM AND 6.505 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
NOMINAL THREAD SIZE1.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
BODY LENGTH1.625 INCHES NOMINAL IN
SPECIAL FEATURES0.156 IN. BY 45.0 DEG CHAMFER END OF SHANK IN
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 4
1005-733-2452Reference document
Same NSN cross-reference
Reference document — Informative reference only
23SP13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7332452Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
32MS3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2910U21?
2910U21 is a STUD,BALL.
What parts can replace 2910U21?
There are 4 known substitutes for 2910U21: 1005-733-2452, 23SP13, 7332452 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2910U21?
2910U21 is cataloged in the U.S. Government catalog under NSN 5307-00-733-2452. 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.