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340103 — TRANSMISSION,HYDRAULIC,VEHICULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

340103: TRANSMISSION,HYDRAULIC,VEHICULAR.

TRANSMISSION,HYDRAULIC,VEHICULAR. Key specifications include part_name_assigned_by_controlling_agency: HEATER, WEAPONS BAY. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-967-7974, 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
340103
NSN: 3110-00-967-7974
NIINs: 009677974, 010509625, 013695461, 016099099
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyHEATER, WEAPONS BAY
NSN3110-00-967-7974
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 340103 · 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
•
CUP WIDTH: 3.1581 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CUP, SINGLE CONES, STEEP ANGLE
•
OVERALL OUTSIDE DIAMETER: 7.3750 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0930 INCHES NOMINAL IN
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY SPECIAL FEATURES
•
NONDEFINITIVE SPEC/STD DATA: 753 TYPE
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CUP WIDTH3.1581 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES, STEEP ANGLE
OVERALL WIDTH4.5625 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER7.3750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0930 INCHES NOMINAL IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY SPECIAL FEATURES
NONDEFINITIVE SPEC/STD DATA753 TYPE
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH0.7022 INCHES NOMINAL IN
SPECIAL FEATURESFURNISHED WITH X1S98400 CONE SPACER,0.0080 IN. BENCH LATERAL IN
SUBSTITUTES & CROSS-REFERENCES 3
A4740Reference document
Same NSN cross-reference
Reference document — Secondary reference
FFB187Reference document
Same NSN cross-reference
Reference document — Secondary reference
203-1993340SHIPC103Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 340103?
340103 is a TRANSMISSION,HYDRAULIC,VEHICULAR.
What parts can replace 340103?
There are 3 known substitutes for 340103: A4740, FFB187, 203-1993340SHIPC103. Substitute compatibility should be verified for your specific system.
What is the NSN for 340103?
340103 is cataloged in the U.S. Government catalog under NSN 3110-00-967-7974. 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.