KR4-CN — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

KR4-CN: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: PLASTIC RACE INSERT, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, hardness_rating: 55.0 ROCKWELL C NOMINAL INNER MEMBER, style_designator: WITH INSERT AND/OR LINER, inner_member_width: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN, outer_member_width: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-087-9397, 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

KR4-CN

NSN: 3120-01-087-9397
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 50632 — KAMATICS CORPORATION (USA)

SPECIFICATIONS

material	PLASTIC RACE INSERT
bore_diameter	0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
hardness_rating	55.0 ROCKWELL C NOMINAL INNER MEMBER
style_designator	WITH INSERT AND/OR LINER
inner_member_width	0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
outer_member_width	0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
static_radial_load_rating	4000 POUNDS LBS
outer_member_outside_diameter	0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
NSN	3120-01-087-9397

COMPONENT DIAGRAM

KEY FEATURES

•

INNER MEMBER WIDTH: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN

•

HARDNESS RATING: 55.0 ROCKWELL C NOMINAL INNER MEMBER

•

OUTER MEMBER WIDTH: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: WITH INSERT AND/OR LINER

•

STATIC RADIAL LOAD RATING: 4000 POUNDS LBS

•

BORE DIAMETER: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN

•

MATERIAL: PLASTIC RACE INSERT

TECHNICAL CHARACTERISTICS

INNER MEMBER WIDTH	0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
HARDNESS RATING	55.0 ROCKWELL C NOMINAL INNER MEMBER
OUTER MEMBER WIDTH	0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
STYLE DESIGNATOR	WITH INSERT AND/OR LINER
STATIC RADIAL LOAD RATING	4000 POUNDS LBS
BORE DIAMETER	0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
MATERIAL	PLASTIC RACE INSERT
MATERIAL	STEEL COMP 440C INNER MEMBER
MATERIAL	STEEL COMP 630 OUTER RACE MEMBER
OUTER MEMBER OUTSIDE DIAMETER	0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938

SUBSTITUTES & CROSS-REFERENCES 1

4049T74P01Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 KR4-CN?

KR4-CN is a BEARING,PLAIN,SELF-ALIGNING.

What parts can replace KR4-CN?

There is 1 known substitute for KR4-CN: 4049T74P01. Substitute compatibility should be verified for your specific system.

What is the NSN for KR4-CN?

KR4-CN is cataloged in the U.S. Government catalog under NSN 3120-01-087-9397. This indicates validated use in U.S. government and defense supply chains.

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KR4-CN — BEARING,PLAIN,SELF-ALIGNING

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