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Technical Data Sheet
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1801-38 — Technical Data Sheet

✓ 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 material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.281 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM IN, alignment_type: RIGID. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-156-1848, 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
1801-38
NSN: 3110-00-156-1848
FSC: 3110
CAGE: 31361 — WOODWARD, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.281 INCHES NOMINAL IN
thread_class2A A
thread_length1.000 INCHES MINIMUM IN
alignment_typeRIGID
overall_height12.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
fastener_length3.000 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
inside_diameter6.0 MILLIMETERS NOMINAL MM
balloon_capacity0.20 MILLILITERS
NSN3110-00-156-1848
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1801-38 · 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
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
ALIGNMENT TYPE: RIGID
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS
•
BORE SMALLEST DIAMETER: 10.0 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
•
MATERIAL: STEEL BALL
TECHNICAL CHARACTERISTICS
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
ALIGNMENT TYPERIGID
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
OVERALL HEIGHT12.0 MILLIMETERS NOMINAL MM
BORE SMALLEST DIAMETER10.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATORGROOVED RACE SURFACE
MATERIALSTEEL BALL
MATERIALSTEEL WASHER
OVERALL OUTSIDE DIAMETER30.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
B94.11MInterchangeableGOVERNMENT REGISTRY
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C12455InterchangeableGOVERNMENT REGISTRY
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110 3 IN.InterchangeableGOVERNMENT REGISTRY
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1149879-3InterchangeableGOVERNMENT REGISTRY
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T301-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
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7031819P1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
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LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1801-38?
1801-38 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace 1801-38?
There are 26 known substitutes for 1801-38: B94.11M, C12455, 110 3 IN. and 23 more. Substitute compatibility should be verified for your specific system.
Is 1801-38 still available?
1801-38 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: September 2026