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P21871 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

P21871: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL COMP 416F OVERALL, cone_width: 2.2650 INCHES NOMINAL IN, bore_diameter: 3.7500 INCHES NOMINAL IN, first_end_style: CHAMFERED, style_designator: NORMAL ANGLE, cone_corner_radius: 0.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0709, 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
P21871
NSN: 3110-00-100-0709
NIINs: 001000709, 001494291
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 04285 — ATHEY PRODUCTS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 416F OVERALL
cone_width2.2650 INCHES NOMINAL IN
bore_diameter3.7500 INCHES NOMINAL IN
first_end_styleCHAMFERED
style_designatorNORMAL ANGLE
cone_corner_radius0.3125 INCHES NOMINAL IN
pin_overall_length0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
pin_overall_diameter0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
first_end_taper_angle15.0 DEGREES NOMINAL
first_end_taper_length0.007 INCHES MINIMUM AND 0.013 INCHES MAXIMUM IN
standard_tolerance_designationAFBMA CLASS 2
material_document_and_classificationAMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3110-00-100-0709
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: P21871 · 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
•
CONE CORNER RADIUS: 0.3125 INCHES NOMINAL IN
•
CONE WIDTH: 2.2650 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 3.7500 INCHES NOMINAL IN
•
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
CONE CORNER RADIUS0.3125 INCHES NOMINAL IN
CONE WIDTH2.2650 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER3.7500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
864Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
30H18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
62AX294Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
FF-B-187AReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P21871?
P21871 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace P21871?
There are 4 known substitutes for P21871: 864, 30H18, 62AX294 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P21871?
P21871 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0709. This indicates validated use in U.S. government and defense supply chains.
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