PartsTable
Technical Data Sheet
Download PDF

78778-1 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

78778-1: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include thickness: 0.059 INCHES NOMINAL IN, hole_diameter: 0.281 INCHES NOMINAL IN, overall_diameter: 1.500 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, end_item_identification: 2350-01-575-0951. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-512-5516, 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
78778-1
NSN: 3110-01-512-5516
NIINs: 015125516, 016585548
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0ACY8 — PARKER-HANNIFIN CORP DIV HYDRAULIC PUMP/MOTOR DIVISION (USA)
SPECIFICATIONS
thickness0.059 INCHES NOMINAL IN
hole_diameter0.281 INCHES NOMINAL IN
overall_diameter1.500 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification2350-01-575-0951
cross-sectional_shape_styleBLANK RECTANGULAR
part_name_assigned_by_controlling_agencyWASHER SNUBBER
NSN3110-01-512-5516
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 78778-1 · 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
TECHNICAL CHARACTERISTICS
OVERALL LENGTH1.0000 INCHES NOMINAL IN
SPECIAL FEATURESID 1.0000 IN; OD 1.3125 IN IN
PART NAME ASSIGNED BY CONTROLLING AGENCYDRAWN CUP NEEDLE ROLLER
END ITEM IDENTIFICATIONPUMP,AXIAL PISTON
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
Ready to buy 78778-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 78778-1?
78778-1 is a BEARING,ROLLER,NEEDLE.
What is the NSN for 78778-1?
78778-1 is cataloged in the U.S. Government catalog under NSN 3110-01-512-5516. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 78778-1

✓ 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.