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8486457 — CATAPULT,AIRCRAFT EJECTION SEAT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

8486457: CATAPULT,AIRCRAFT EJECTION SEAT.

CATAPULT,AIRCRAFT EJECTION SEAT. Key specifications include material: STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A, special_features: METALLIC HARDNESS RATING ROCKWELL C MIN 58.0 IN. AND MAX 65.0 IN.

IN, style_designator: BALL, rolling_element_diameter: 0.3125 INCHES NOMINAL IN, nondefinitive_spec/std_data: 2 COMPOSITION AND 100 GRADE, standard_tolerance_designation: AFBMA STD TOLERANCE FOR BALLS, GRADE 100. This part is cataloged in the U.S. Government catalog under NSN 3110-00-100-6214, 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
8486457
NSN: 3110-00-100-6214
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A
special_featuresMETALLIC HARDNESS RATING ROCKWELL C MIN 58.0 IN. AND MAX 65.0 IN. IN
style_designatorBALL
rolling_element_diameter0.3125 INCHES NOMINAL IN
nondefinitive_spec/std_data2 COMPOSITION AND 100 GRADE
standard_tolerance_designationAFBMA STD TOLERANCE FOR BALLS, GRADE 100
material_document_and_classification66 FED STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OVERALL
NSN3110-00-100-6214
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 8486457 · 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
•
ROLLING ELEMENT DIAMETER: 0.3125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 COMPOSITION AND 100 GRADE
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR BALLS, GRADE 100
•
MATERIAL: STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.3125 INCHES NOMINAL IN
STYLE DESIGNATORBALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA2 COMPOSITION AND 100 GRADE
SPECIAL FEATURESMETALLIC HARDNESS RATING ROCKWELL C MIN 58.0 IN. AND MAX 65.0 IN. IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR BALLS, GRADE 100
MATERIALSTEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A
SUBSTITUTES & CROSS-REFERENCES 8
32N802PC15Reference document
Same NSN cross-reference
Reference document — Secondary reference
K8468646Reference document
Same NSN cross-reference
Reference document — Secondary reference
BBS312Reference document
Same NSN cross-reference
Reference document — Secondary reference
40SX7Reference document
Same NSN cross-reference
Reference document — Secondary reference
C36044Reference document
Same NSN cross-reference
Reference document — Secondary reference
195137Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8486457?
8486457 is a CATAPULT,AIRCRAFT EJECTION SEAT.
What parts can replace 8486457?
There are 8 known substitutes for 8486457: 32N802PC15, K8468646, BBS312 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8486457?
8486457 is cataloged in the U.S. Government catalog under NSN 3110-00-100-6214. 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.