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2123870 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

2123870: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include length: 2.675 INCHES NOMINAL IN, material: STEEL COMP 1020 OVERALL, style_designator: SQUARE, aperture_diameter: 1.250 INCHES NOMINAL IN, surface_treatment: PHOSPHATE MANGANESE OVERALL, mounting_hole_type: ROUND, UNTHREADED. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-320-9664, 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
2123870
NSN: 3110-01-320-9664
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
length2.675 INCHES NOMINAL IN
materialSTEEL COMP 1020 OVERALL
style_designatorSQUARE
aperture_diameter1.250 INCHES NOMINAL IN
surface_treatmentPHOSPHATE MANGANESE OVERALL
mounting_hole_typeROUND, UNTHREADED
mounting_hole_diameter0.406 INCHES NOMINAL IN
mounting_hole_arrangement_styleFOUR HOLES
distance_between_holes_along_width1.937 INCHES NOMINAL IN
distance_between_holes_along_length1.937 INCHES NOMINAL IN
material_document_and_classificationASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_vertical_centerline_to_center_of_right_hole0.968 INCHES NOMINAL IN
NSN3110-01-320-9664
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2123870 · 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
•
LENGTH: 2.675 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 1.937 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
MOUNTING HOLE ARRANGEMENT STYLE: FOUR HOLES
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 1.937 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SQUARE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.406 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH2.675 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH1.937 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
MOUNTING HOLE ARRANGEMENT STYLEFOUR HOLES
DISTANCE BETWEEN HOLES ALONG WIDTH1.937 INCHES NOMINAL IN
STYLE DESIGNATORSQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.406 INCHES NOMINAL IN
APERTURE DIAMETER1.250 INCHES NOMINAL IN
DISTANCE FROM HORIZONTAL CENTERLINE TO CENTER OF RIGHT HOLE0.968 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 2123870?
2123870 is a PLATE,RETAINING,BEARING.
What is the NSN for 2123870?
2123870 is cataloged in the U.S. Government catalog under NSN 3110-01-320-9664. 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.