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9961M55P01 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

9961M55P01: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 OVERALL, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, outside_diameter: 2.5895 INCHES MINIMUM AND 2.5900 INCHES MAXIMUM IN, special_features: MAGNETIC PARTICLE INSP REQD,PROCESS TO BE CONTINUOUS FLUORESCENT SUSPENSION,RESIDUAL MAGNETISM 5 GAUSS ALLOWED, style_designator: ROUND, aperture_diameter: 2.4409 INCHES MINIMUM AND 2.4414 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-176-6399, 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
9961M55P01
NSN: 3110-01-176-6399
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 4340 OVERALL
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
outside_diameter2.5895 INCHES MINIMUM AND 2.5900 INCHES MAXIMUM IN
special_featuresMAGNETIC PARTICLE INSP REQD,PROCESS TO BE CONTINUOUS FLUORESCENT SUSPENSION,RESIDUAL MAGNETISM 5 GAUSS ALLOWED
style_designatorROUND
aperture_diameter2.4409 INCHES MINIMUM AND 2.4414 INCHES MAXIMUM IN
overall_thickness0.460 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
counterbore_diameter2.180 INCHES MINIMUM AND 2.190 INCHES MAXIMUM IN
end_item_identificationACFT ENG F-101
NSN3110-01-176-6399
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 9961M55P01 · 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
•
COUNTERBORE DIAMETER: 2.180 INCHES MINIMUM AND 2.190 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 0.460 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: ROUND
•
OUTSIDE DIAMETER: 2.5895 INCHES MINIMUM AND 2.5900 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 2.4409 INCHES MINIMUM AND 2.4414 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
COUNTERBORE DIAMETER2.180 INCHES MINIMUM AND 2.190 INCHES MAXIMUM IN
OVERALL THICKNESS0.460 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORROUND
OUTSIDE DIAMETER2.5895 INCHES MINIMUM AND 2.5900 INCHES MAXIMUM IN
APERTURE DIAMETER2.4409 INCHES MINIMUM AND 2.4414 INCHES MAXIMUM IN
SPECIAL FEATURESMAGNETIC PARTICLE INSP REQD,PROCESS TO BE CONTINUOUS FLUORESCENT SUSPENSION,RESIDUAL MAGNETISM 5 GAUSS ALLOWED
END ITEM IDENTIFICATIONACFT ENG F-101
MATERIALSTEEL COMP 4340 OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 9961M55P01?
9961M55P01 is a PLATE,RETAINING,BEARING.
What is the NSN for 9961M55P01?
9961M55P01 is cataloged in the U.S. Government catalog under NSN 3110-01-176-6399. 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.