ATF8 — BEARING,ROLLER,NEEDLE

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

ATF8: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 INNER RING, crown_radius: 12.5000 INCHES MINIMUM AND 14.5000 INCHES MAXIMUM IN, bore_diameter: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-054-1504, 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

ATF8

NSN: 3110-01-054-1504
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)

SPECIFICATIONS

material	STEEL COMP E52100 INNER RING
crown_radius	12.5000 INCHES MINIMUM AND 14.5000 INCHES MAXIMUM IN
bore_diameter	0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
seal_quantity	2
alignment_type	RIGID
surface_finish	GROUND
inner_ring_width	0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
outer_ring_width	0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN
special_features	PACK 8O PCT FULL WITH SPECIFIED LUBRICANT
style_designator	TRACK ROLLER
bearing_seal_type	CONTACT
surface_treatment	CHROMIUM OUTER RING OUTSIDE DIAMETER
NSN	3110-01-054-1504

COMPONENT DIAGRAM

KEY FEATURES

•

BEARING SEAL TYPE: CONTACT

•

LUBRICATION MATERIAL: GREASE

•

OUTER RING WIDTH: 0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED

•

SURFACE FINISH: GROUND

•

CROWN RADIUS: 12.5000 INCHES MINIMUM AND 14.5000 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: TRACK ROLLER

TECHNICAL CHARACTERISTICS

BEARING SEAL TYPE	CONTACT
LUBRICATION MATERIAL	GREASE
OUTER RING WIDTH	0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING OUTSIDE DIAMETER
SURFACE FINISH	GROUND
CROWN RADIUS	12.5000 INCHES MINIMUM AND 14.5000 INCHES MAXIMUM IN
STYLE DESIGNATOR	TRACK ROLLER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6440 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6441 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6440 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6441 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING

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 3

BACB10ET08Reference document

Same NSN cross-reference

Reference document — Secondary reference

AC47219Reference document

Same NSN cross-reference

Reference document — Secondary reference

8AFC1021Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 ATF8?

ATF8 is a BEARING,ROLLER,NEEDLE.

What parts can replace ATF8?

There are 3 known substitutes for ATF8: BACB10ET08, AC47219, 8AFC1021. Substitute compatibility should be verified for your specific system.

What is the NSN for ATF8?

ATF8 is cataloged in the U.S. Government catalog under NSN 3110-01-054-1504. This indicates validated use in U.S. government and defense supply chains.

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