B542DD — BEARING,BALL,AIRFRAME

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

B542DD: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_diameter: 1.3118 INCHES MINIMUM AND 1.3132 INCHES MAXIMUM IN, load_direction: RADIAL, inner_ring_width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN, outer_ring_width: 0.2500 INCHES NOMINAL IN, special_features: FILLED WITH 80 PCT SPECIFIED LUBRICANT. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-011-9145, 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

B542DD

NSN: 3110-00-011-9145
NIINs: 000119145, 001068828, 008396357
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)

SPECIFICATIONS

material	STEEL INNER RING
bore_diameter	1.3118 INCHES MINIMUM AND 1.3132 INCHES MAXIMUM IN
seal_quantity	2
load_direction	RADIAL
shield_quantity	2
inner_ring_width	0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
outer_ring_width	0.2500 INCHES NOMINAL IN
special_features	FILLED WITH 80 PCT SPECIFIED LUBRICANT
style_designator	SINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_type	CONTACT
surface_treatment	CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
lubrication_material	GREASE
NSN	3110-00-011-9145

COMPONENT DIAGRAM

KEY FEATURES

•

BEARING SEAL TYPE: CONTACT

•

LUBRICATION MATERIAL: GREASE

•

OUTER RING WIDTH: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN

•

SHIELD QUANTITY: 2

•

STYLE DESIGNATOR: SINGLE ROW INNER RING EXTENDED BOTH SIDES

•

MATERIAL DOCUMENT AND CLASSIFICATION: 369A7951-17,02731 MFR REF SINGLE MATERIAL RESPONSE SEAL

TECHNICAL CHARACTERISTICS

BEARING SEAL TYPE	CONTACT
LUBRICATION MATERIAL	GREASE
OUTER RING WIDTH	0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
SHIELD QUANTITY	2
STYLE DESIGNATOR	SINGLE ROW INNER RING EXTENDED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATION	369A7951-17,02731 MFR REF SINGLE MATERIAL RESPONSE SEAL
MATERIAL DOCUMENT AND CLASSIFICATION	369A7951-17,02731 MFR REF SINGLE MATERIAL RESPONSE SHIELD
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66,AISI/SAE E51100 FED STD SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66,AISI/SAE E52100 FED STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION	FED-STD-66,AISI/SAE E52100 FED STD SINGLE MATERIAL RESPONSE OUTER RING

SUBSTITUTES & CROSS-REFERENCES 3

10408193Reference document

Same NSN cross-reference

Reference document — Informative reference only

369A7951-17Reference document

Same NSN cross-reference

Reference document — Secondary reference

B542DDFA160Reference 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 B542DD?

B542DD is a BEARING,BALL,AIRFRAME.

What parts can replace B542DD?

There are 3 known substitutes for B542DD: 10408193, 369A7951-17, B542DDFA160. Substitute compatibility should be verified for your specific system.

What is the NSN for B542DD?

B542DD is cataloged in the U.S. Government catalog under NSN 3110-00-011-9145. This indicates validated use in U.S. government and defense supply chains.

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