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8903-1 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

8903-1: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: PLASTIC ENCLOSURE, bore_shape: STRAIGHT, bore_diameter: 5.00 MILLIMETERS NOMINAL MM, overall_width: 0.380 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN, load_direction: RADIAL, overall_height: 0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-5303, 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
8903-1
NSN: 3110-00-156-5303
NIINs: 001565303, 010269827, 013721911
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 03848 — ARMA DIV AMBAC INDUSTRIES INC
SPECIFICATIONS
materialPLASTIC ENCLOSURE
bore_shapeSTRAIGHT
bore_diameter5.00 MILLIMETERS NOMINAL MM
overall_width0.380 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
load_directionRADIAL
overall_height0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
overall_length1.145 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN
surface_finishGROUND
mounting_methodUNTHREADED HOLE(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
style_designatorCOUNTERBORED OUTER RING, MAGNETO TYPE, S EPARABLE
internal_configurationJUNCTION CONTACT
NSN3110-00-156-5303
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 8903-1 · 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
KEY FEATURES
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, MAGNETO TYPE, S EPARABLE
•
OVERALL OUTSIDE DIAMETER: 16.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RING, MAGNETO TYPE, S EPARABLE
OVERALL WIDTH5.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER16.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER5.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 9
504902-2Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
CC6613Reference document
Same NSN cross-reference
Reference document — Secondary reference
ND5-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
157228-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
6613KReference document
Same NSN cross-reference
Reference document — Secondary reference
E5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8903-1?
8903-1 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 8903-1?
There are 9 known substitutes for 8903-1: 504902-2, CC6613, ND5-1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8903-1?
8903-1 is cataloged in the U.S. Government catalog under NSN 3110-00-156-5303. This indicates validated use in U.S. government and defense supply chains.
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