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88-4040 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

88-4040: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, overall_width: 0.3075 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-157-1972, 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
88-4040
NSN: 3110-00-157-1972
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81413 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DBA BAE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
overall_width0.3075 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresCORNER RADII 0.0150 IN. IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
overall_outside_diameter0.9058 INCHES MINIMUM AND 0.9063 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
NSN3110-00-157-1972
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 88-4040 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 0.9058 INCHES MINIMUM AND 0.9063 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
SHIELD QUANTITY2
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.3075 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.9058 INCHES MINIMUM AND 0.9063 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SUBSTITUTES & CROSS-REFERENCES 5
1606DSANG25Reference document
Same NSN cross-reference
Reference document — Secondary reference
1606DSReference document
Same NSN cross-reference
Reference document — Secondary reference
1606DSMILG3278Reference document
Same NSN cross-reference
Reference document — Secondary reference
133357Reference document
Same NSN cross-reference
Reference document — Secondary reference
M81793-BXXXBA0SCB51AX1Reference 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 88-4040?
88-4040 is a BEARING,BALL,ANNULAR.
What parts can replace 88-4040?
There are 5 known substitutes for 88-4040: 1606DSANG25, 1606DS, 1606DSMILG3278 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 88-4040?
88-4040 is cataloged in the U.S. Government catalog under NSN 3110-00-157-1972. This indicates validated use in U.S. government and defense supply chains.
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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.