PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 21203-7
21203-7 ✓ 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

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include phase: TWO INPUT, material: STEEL OVERALL, body_width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, head_style: FILLISTER, body_height: 0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, body_length: 0.710 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0302, 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
21203-7
NSN: 3110-00-100-0302
FSC: 3110
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
phaseTWO INPUT
materialSTEEL OVERALL
body_width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
head_styleFILLISTER
body_height0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.710 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
head_height0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
temp_rating65.0 AMBIENT CELSIUS AND -55.0 OPERATING CELSIUS AND 55.0 OPERATING CELSIUS
current_typeAC INPUT
thread_class2A A
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
hole_diameter0.046 INCHES NOMINAL IN
NSN3110-00-100-0302
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 21203-7 · 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
•
BACKFACE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.8125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0312 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
OUTSIDE DIAMETER3.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
3821Interchangeable
interchangeable cross-reference
interchangeable
14204Interchangeable
interchangeable cross-reference
interchangeable
73458Interchangeable
interchangeable cross-reference
interchangeable
32-50178-9Interchangeable
interchangeable cross-reference
interchangeable
203-5920-9Interchangeable
interchangeable cross-reference
interchangeable
382AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21203-7?
21203-7 is a MICROCIRCUIT,DIGITAL.
What parts can replace 21203-7?
There are 23 known substitutes for 21203-7: 3821, 14204, 73458 and 20 more. Substitute compatibility should be verified for your specific system.
Is 21203-7 still available?
21203-7 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026