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BT612 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

BT612: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, scale_range: -3.0 TO 3.0 VOLTS, overall_width: 7.000 INCHES NOMINAL IN, overall_height: 8.620 INCHES NOMINAL IN, overall_length: 6.750 INCHES NOMINAL IN, outside_diameter: 4.7500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0331, 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
MRO→ MRO_GENERAL→ BT612
NSN: 3110-00-100-0331
NIINs: 001000331, 001003149, 002412311, 014336786
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
scale_range-3.0 TO 3.0 VOLTS
overall_width7.000 INCHES NOMINAL IN
prod_quantity2
meter_quantity1
overall_height8.620 INCHES NOMINAL IN
overall_length6.750 INCHES NOMINAL IN
handle_quantity1
outside_diameter4.7500 INCHES NOMINAL IN
special_featuresILLUMINATED DIAL
special_markingsCHARGED; DEAD; DISCHARGED
style_designatorNORMAL ANGLE
NSN3110-00-100-0331
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BT612 · 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
KEY FEATURES
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 4.7500 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH1.2500 INCHES NOMINAL IN
OUTSIDE DIAMETER4.7500 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
36601HReference document
Same NSN cross-reference
Reference document — Secondary reference
612Reference document
Same NSN cross-reference
Reference document — Secondary reference
93085Reference document
Same NSN cross-reference
Reference document — Secondary reference
211581Reference document
Same NSN cross-reference
Reference document — Secondary reference
46612Reference document
Same NSN cross-reference
Reference document — Secondary reference
30053Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BT612?
BT612 is a CONE AND ROLLERS,TAPERED ROLLER. It is classified as a MRO (MRO_GENERAL).
What parts can replace BT612?
There are 9 known substitutes for BT612: 36601H, 612, 93085 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT612?
BT612 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0331. 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.