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277 ITEM 12 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

277 ITEM 12: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010, body_width: 4.281 INCHES NOMINAL IN, body_height: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN, body_length: 2.219 INCHES NOMINAL IN, terminal_type: WIRE LEAD, first_leg_angle: 90.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-299-7246, 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
277 ITEM 12
NSN: 3110-01-299-7246
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: U3374 — CAT PUMPS (UK) LTD (GBR)
SPECIFICATIONS
materialSTEEL COMP 1010
body_width4.281 INCHES NOMINAL IN
body_height0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
body_length2.219 INCHES NOMINAL IN
terminal_typeWIRE LEAD
first_leg_angle90.0 DEGREES NOMINAL
first_leg_styleSQUARE
first_leg_width32.000 MILLIMETERS NOMINAL MM
terminal_length3.125 INCHES NOMINAL IN
first_leg_length26.900 MILLIMETERS NOMINAL MM
inclosure_methodENCAPSULATED
second_leg_styleEND RADIUS
NSN3110-01-299-7246
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 277 ITEM 12 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
277 ITEM 26Reference document
Same NSN cross-reference
Reference document — Secondary reference
14487Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
05826Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 277 ITEM 12?
277 ITEM 12 is a BEARING,BALL,ANNULAR.
What parts can replace 277 ITEM 12?
There are 3 known substitutes for 277 ITEM 12: 277 ITEM 26, 14487, 05826. Substitute compatibility should be verified for your specific system.
What is the NSN for 277 ITEM 12?
277 ITEM 12 is cataloged in the U.S. Government catalog under NSN 3110-01-299-7246. This indicates validated use in U.S. government and defense supply chains.
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