PartsTable
Technical Data Sheet
PartsTable / COMPONENT / B-73
B-73 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include shape: CYLINDRICAL, material: RUBBER BODY, wheel_style: STRAIGHT, usage_design: METALWORKING, bore_diameter: 0.5625 INCHES NOMINAL IN, hole_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-112-5880, 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
B-73
NSN: 3110-00-112-5880
FSC: 3110
CAGE: 00724 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialRUBBER BODY
wheel_styleSTRAIGHT
usage_designMETALWORKING
bore_diameter0.5625 INCHES NOMINAL IN
hole_diameter0.625 INCHES NOMINAL IN
overall_width0.3750 INCHES NOMINAL IN
terminal_typeFLAT SURFACE TOP
alignment_typeRIGID
overall_length2.390 INCHES NOMINAL IN
spindle_length1.500 INCHES NOMINAL IN
wheel_diameter7.000 INCHES NOMINAL IN
NSN3110-00-112-5880
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B-73 · 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
•
ALIGNMENT TYPE: RIGID
•
OVERALL OUTSIDE DIAMETER: 0.6250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
•
BORE DIAMETER: 0.5625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.3750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OVERALL OUTSIDE DIAMETER0.6250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
BORE DIAMETER0.5625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
GB-1112Interchangeable
interchangeable cross-reference
interchangeable
B610PInterchangeable
interchangeable cross-reference
interchangeable
GB610Interchangeable
interchangeable cross-reference
interchangeable
AS20659Interchangeable
interchangeable cross-reference
interchangeable
B-418-38Interchangeable
interchangeable cross-reference
interchangeable
Y18984CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-73?
B-73 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace B-73?
There are 18 known substitutes for B-73: GB-1112, B610P, GB610 and 15 more. Substitute compatibility should be verified for your specific system.
Is B-73 still available?
B-73 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026