PartsTable
Technical Data Sheet
Download PDF

550-1-03 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

550-1-03: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1025 MANDREL, bore_shape: STRAIGHT, head_style: OVAL/TRUSS, design_type: INVERTED HORN ALL ANTENNAS, grip_length: 0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, head_height: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-183-7021, 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
550-1-03
NSN: 3110-00-183-7021
NIINs: 001837021, 009321972, 013883529, 015825804
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 95019 — DANA CORP SPICER TRANSMISSION DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 1025 MANDREL
bore_shapeSTRAIGHT
head_styleOVAL/TRUSS
design_typeINVERTED HORN ALL ANTENNAS
grip_length0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
head_height0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
shank_styleSELF-PLUGGING
bore_diameter65.00 MILLIMETERS NOMINAL MM
overall_width33.00 MILLIMETERS NOMINAL MM
shank_diameter0.125 INCHES NOMINAL IN
surface_finishGROUND
fastener_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
NSN3110-00-183-7021
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550-1-03 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 140.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
STYLE DESIGNATORSINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
OVERALL WIDTH33.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER140.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER65.00 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 7
95497R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
R1313WBReference document
Same NSN cross-reference
Reference document — Secondary reference
DAN00282Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MUL313Reference document
Same NSN cross-reference
Reference document — Secondary reference
412-1313-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
412-1313-57Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 550-1-03?
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 550-1-03?
550-1-03 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 550-1-03?
There are 7 known substitutes for 550-1-03: 95497R91, R1313WB, DAN00282 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550-1-03?
550-1-03 is cataloged in the U.S. Government catalog under NSN 3110-00-183-7021. 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 — 550-1-03

✓ 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.