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31-21700 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

31-21700: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include bore_diameter: 0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN, overall_width: 0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, alignment_type: RIGID, special_features: OIL HOLE IN OUTER RING, style_designator: NON-SEPARABLE, OPEN END, DRAWN SHELL, overall_outside_diameter: 1.1250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-975-3586, 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
31-21700
NSN: 3110-00-975-3586
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 88907 — BRUNSWICK CORP DBA MERCURY MARINE DIV MERCURY MARINE (USA)
SPECIFICATIONS
bore_diameter0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN
overall_width0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
alignment_typeRIGID
special_featuresOIL HOLE IN OUTER RING
style_designatorNON-SEPARABLE, OPEN END, DRAWN SHELL
overall_outside_diameter1.1250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-975-3586
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 31-21700 · 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: NON-SEPARABLE, OPEN END, DRAWN SHELL
•
OVERALL OUTSIDE DIAMETER: 1.1250 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
BORE DIAMETER: 0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
OVERALL WIDTH0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.1250 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
SPECIAL FEATURESOIL HOLE IN OUTER RING
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER0.8755 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
R2H-606Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3120009753586Reference document
Same NSN cross-reference
Reference document — Secondary reference
B14120HReference document
Same NSN cross-reference
Reference document — Secondary reference
3110009753586Reference document
Same NSN cross-reference
Reference document — Secondary reference
ASTM F2162-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
214118Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31-21700?
31-21700 is a BEARING,ROLLER,NEEDLE.
What parts can replace 31-21700?
There are 8 known substitutes for 31-21700: R2H-606, 3120009753586, B14120H and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-21700?
31-21700 is cataloged in the U.S. Government catalog under NSN 3110-00-975-3586. 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.