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212887 — ISOLATOR,RADIO FREQUENCY REFLECT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

212887: ISOLATOR,RADIO FREQUENCY REFLECT.

ISOLATOR,RADIO FREQUENCY REFLECT. Key specifications include material: STEEL OVERALL, cup_width: 2.0000 INCHES NOMINAL IN, cone_width: 2.8750 INCHES NOMINAL IN, bore_diameter: 4.0000 INCHES NOMINAL IN, overall_width: 0.500 INCHES NOMINAL IN, overall_height: 0.920 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-455-0399, 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
212887
NSN: 3110-00-455-0399
NIINs: 004550399, 014248733, 014777553
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width2.0000 INCHES NOMINAL IN
cone_width2.8750 INCHES NOMINAL IN
bore_diameter4.0000 INCHES NOMINAL IN
overall_width0.500 INCHES NOMINAL IN
overall_height0.920 INCHES NOMINAL IN
overall_length1.510 INCHES NOMINAL IN
standout_width1.0000 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, STEEP ANGLE
trade_designationISOLATOR, SMA
cone_corner_radius0.2500 INCHES NOMINAL IN
connector_quantity2
NSN3110-00-455-0399
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 212887 · 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
•
CUP WIDTH: 2.0000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, STEEP ANGLE
•
OVERALL OUTSIDE DIAMETER: 9.8750 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
STANDOUT WIDTH: 1.0000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
CUP WIDTH2.0000 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, STEEP ANGLE
OVERALL WIDTH3.0000 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER9.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.2500 INCHES NOMINAL IN
CONE CORNER RADIUS0.2500 INCHES NOMINAL IN
STANDOUT WIDTH1.0000 INCHES NOMINAL IN
CONE WIDTH2.8750 INCHES NOMINAL IN
SPECIAL FEATURESPHOSPHATE FINISH
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 212887?
212887 is a ISOLATOR,RADIO FREQUENCY REFLECT.
What is the NSN for 212887?
212887 is cataloged in the U.S. Government catalog under NSN 3110-00-455-0399. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.