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547903 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

547903: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include bore_diameter: 0.1248 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN, overall_width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, special_features: USED ON A PITCHLOCK REGULATOR ASSEMBLY, overall_outside_diameter: 0.2470 INCHES MINIMUM AND 0.2473 INCHES MAXIMUM IN, criticality_code_justification: ABMK AND FEAT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-342-4670, 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
547903
NSN: 3110-01-342-4670
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
bore_diameter0.1248 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
overall_width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
special_featuresUSED ON A PITCHLOCK REGULATOR ASSEMBLY
overall_outside_diameter0.2470 INCHES MINIMUM AND 0.2473 INCHES MAXIMUM IN
criticality_code_justificationABMK AND FEAT
NSN3110-01-342-4670
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 547903 · 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
•
CRITICALITY CODE JUSTIFICATION: ABMK AND FEAT
•
OVERALL OUTSIDE DIAMETER: 0.2470 INCHES MINIMUM AND 0.2473 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.1248 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONABMK AND FEAT
OVERALL WIDTH0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.2470 INCHES MINIMUM AND 0.2473 INCHES MAXIMUM IN
SPECIAL FEATURESUSED ON A PITCHLOCK REGULATOR ASSEMBLY
BORE DIAMETER0.1248 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 547903?
547903 is a BEARING,ROLLER,NEEDLE.
What is the NSN for 547903?
547903 is cataloged in the U.S. Government catalog under NSN 3110-01-342-4670. 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.