CRSB-20 — CAM FOLLOWER,NEEDLE BEARING

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

CRSB-20: CAM FOLLOWER,NEEDLE BEARING.

The CAM FOLLOWER,NEEDLE BEARING is a the manufacturer industrial component. Key specifications include material: STEEL STUD, stud_length: 1.2500 INCHES NOMINAL IN, thread_class: 3A A, stud_diameter: 0.5000 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN, thread_length: 0.6250 INCHES MINIMUM IN, overall_length: 2.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-301-7893, 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

CRSB-20

NSN: 3110-01-301-7893
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)

SPECIFICATIONS

material	STEEL STUD
stud_length	1.2500 INCHES NOMINAL IN
thread_class	3A A
seal_quantity	2
stud_diameter	0.5000 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
thread_length	0.6250 INCHES MINIMUM IN
overall_length	2.3125 INCHES NOMINAL IN
outer_ring_width	0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
special_features	HEXAGONAL WRENCH SOCKET IN STUD HEAD 0.2500 WRENCH SIZE;EXPOSED SURFACES AS MOUNTED COLOR BLACK
style_designator	CAM FOLLOWER
thread_direction	RIGHT-HAND
bearing_seal_type	CONTACT
NSN	3110-01-301-7893

COMPONENT DIAGRAM

KEY FEATURES

•

BEARING SEAL TYPE: CONTACT

•

LUBRICATION MATERIAL: LUBRICANT

•

OUTER RING WIDTH: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.6250 INCHES MINIMUM IN

•

STYLE DESIGNATOR: CAM FOLLOWER

•

OVERALL OUTSIDE DIAMETER: 1.2490 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

BEARING SEAL TYPE	CONTACT
LUBRICATION MATERIAL	LUBRICANT
OUTER RING WIDTH	0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
THREAD LENGTH	0.6250 INCHES MINIMUM IN
STYLE DESIGNATOR	CAM FOLLOWER
OVERALL LENGTH	2.3125 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER	1.2490 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.500 INCHES IN
STUD LENGTH	1.2500 INCHES NOMINAL 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 1

CF-1.25-SBReference document

Same NSN cross-reference

Reference document — Secondary reference

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 CRSB-20?

CRSB-20 is a CAM FOLLOWER,NEEDLE BEARING.

What parts can replace CRSB-20?

There is 1 known substitute for CRSB-20: CF-1.25-SB. Substitute compatibility should be verified for your specific system.

What is the NSN for CRSB-20?

CRSB-20 is cataloged in the U.S. Government catalog under NSN 3110-01-301-7893. This indicates validated use in U.S. government and defense supply chains.

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CRSB-20 — CAM FOLLOWER,NEEDLE BEARING

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