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138173 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
Hama · TAPERED BEARING
PRODUCT OVERVIEW

138173: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a Hama industrial component. Key specifications include bore_diameter: 0.2500 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, features_provided: ALIGNING RING, surface_treatment: CADMIUM OVERALL, lubrication_material: GREASE, overall_outside_diameter: 0.9380 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-108-7419, 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
138173
NSN: 3110-00-108-7419
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
bore_diameter0.2500 INCHES NOMINAL IN
alignment_typeSELF-ALIGNING
features_providedALIGNING RING
surface_treatmentCADMIUM OVERALL
lubrication_materialGREASE
overall_outside_diameter0.9380 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
NSN3110-00-108-7419
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 138173 · Hama ⚠ 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
•
LUBRICATION MATERIAL: GREASE
•
OVERALL OUTSIDE DIAMETER: 0.9380 INCHES NOMINAL IN
•
FEATURES PROVIDED: ALIGNING RING
•
ALIGNMENT TYPE: SELF-ALIGNING
•
SURFACE TREATMENT: CADMIUM OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
•
BORE DIAMETER: 0.2500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
OVERALL OUTSIDE DIAMETER0.9380 INCHES NOMINAL IN
FEATURES PROVIDEDALIGNING RING
ALIGNMENT TYPESELF-ALIGNING
SURFACE TREATMENTCADMIUM OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
BORE DIAMETER0.2500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
158173Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 138173?
138173 is a BEARING,ROLLER,NEEDLE manufactured by Hama.
What parts can replace 138173?
There is 1 known substitute for 138173: 158173. Substitute compatibility should be verified for your specific system.
What is the NSN for 138173?
138173 is cataloged in the U.S. Government catalog under NSN 3110-00-108-7419. 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.