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Technical Data Sheet
PartsTable / COMPONENT / NAS504-48
NAS504-48 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 2.9993 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN, alignment_type: SELF-ALIGNING, inner_ring_width: 1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN, outer_ring_width: 1.0440 INCHES MINIMUM AND 1.0490 INCHES MAXIMUM IN, special_features: OIL HOLE AND GROOVE IN OUTER AND INNER RINGS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2878, 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
NAS504-48
NSN: 3110-00-227-2878
FSC: 3110
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter2.9993 INCHES MINIMUM AND 3.0000 INCHES MAXIMUM IN
alignment_typeSELF-ALIGNING
inner_ring_width1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
outer_ring_width1.0440 INCHES MINIMUM AND 1.0490 INCHES MAXIMUM IN
special_featuresOIL HOLE AND GROOVE IN OUTER AND INNER RINGS
features_providedALIGNING RING
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
lubrication_materialGREASE
self-alignment_locationINTERNAL
overall_outside_diameter4.2492 INCHES MINIMUM AND 4.2500 INCHES MAXIMUM IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-227-2878
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: NAS504-48 · 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
•
FEATURES PROVIDED: ALIGNING RING
•
ALIGNMENT TYPE: SELF-ALIGNING
•
INNER RING WIDTH: 1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
•
OUTER RING WIDTH: 1.0440 INCHES MINIMUM AND 1.0490 INCHES MAXIMUM IN
•
SELF-ALIGNMENT LOCATION: INTERNAL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
LUBRICATION MATERIAL: GREASE
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDALIGNING RING
SPECIAL FEATURESOIL HOLE AND GROOVE IN OUTER AND INNER RINGS
ALIGNMENT TYPESELF-ALIGNING
INNER RING WIDTH1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
OUTER RING WIDTH1.0440 INCHES MINIMUM AND 1.0490 INCHES MAXIMUM IN
SELF-ALIGNMENT LOCATIONINTERNAL
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
LUBRICATION MATERIALGREASE
OVERALL OUTSIDE DIAMETER4.2492 INCHES MINIMUM AND 4.2500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
6NBK919YZPANG25Interchangeable
interchangeable cross-reference
interchangeable
AS24464Interchangeable
interchangeable cross-reference
interchangeable
7NBK1021YZP2CInterchangeable
interchangeable cross-reference
interchangeable
7NBK1021YZPInterchangeable
interchangeable cross-reference
interchangeable
8NBK1224YZPInterchangeable
interchangeable cross-reference
interchangeable
8SAMILG3278Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS504-48?
NAS504-48 is a BEARING,ROLLER,NEEDLE.
What parts can replace NAS504-48?
There are 26 known substitutes for NAS504-48: 6NBK919YZPANG25, AS24464, 7NBK1021YZP2C and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS504-48?
NAS504-48 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2878. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026