HMJKR-4A — BEARING,PLAIN,ROD END

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

HMJKR-4A: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN, overall_length: 1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN, hardness_rating: 60.0 ROCKWELL C MINIMUM INNER MEMBER, style_designator: BALL TYPE. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-042-5905, 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

HMJKR-4A

NSN: 3120-00-042-5905
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)

SPECIFICATIONS

shank_style	EXTERNALLY THREADED
thread_class	3A A
bore_diameter	0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
overall_length	1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN
hardness_rating	60.0 ROCKWELL C MINIMUM INNER MEMBER
special_features	8.0 DEG MAX MISALIGNMENT,KEYWAY IN SHANK 0.0620 IN. MIN 0.0670 IN. MAXW 0.0390 IN. MIN 0.0690 IN. MAX DEEP 0.7400 IN. MIN 0.7600 IN. MAX LG IN
style_designator	BALL TYPE
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM ROD END BODY
inner_member_width	0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
outer_member_width	0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
shank_thread_length	1.0000 INCHES NOMINAL IN
NSN	3120-00-042-5905

COMPONENT DIAGRAM

KEY FEATURES

•

SHANK THREAD LENGTH: 1.0000 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY

•

BORE CENTER TO SHANK END DISTANCE: 1.5550 INCHES MINIMUM AND 1.5720 INCHES MAXIMUM IN

•

INNER MEMBER WIDTH: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN

•

HARDNESS RATING: 60.0 ROCKWELL C MINIMUM INNER MEMBER

•

OUTER MEMBER WIDTH: 0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: BALL TYPE

TECHNICAL CHARACTERISTICS

SHANK THREAD LENGTH	1.0000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY
BORE CENTER TO SHANK END DISTANCE	1.5550 INCHES MINIMUM AND 1.5720 INCHES MAXIMUM IN
INNER MEMBER WIDTH	0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
HARDNESS RATING	60.0 ROCKWELL C MINIMUM INNER MEMBER
OUTER MEMBER WIDTH	0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
STYLE DESIGNATOR	BALL TYPE
OVERALL LENGTH	1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND
SHANK STYLE	EXTERNALLY THREADED

SUBSTITUTES & CROSS-REFERENCES 2

9-866AReference document

Same NSN cross-reference

Reference document — Secondary reference

2-300-271Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is HMJKR-4A?

HMJKR-4A is a BEARING,PLAIN,ROD END.

What parts can replace HMJKR-4A?

There are 2 known substitutes for HMJKR-4A: 9-866A, 2-300-271. Substitute compatibility should be verified for your specific system.

What is the NSN for HMJKR-4A?

HMJKR-4A is cataloged in the U.S. Government catalog under NSN 3120-00-042-5905. This indicates validated use in U.S. government and defense supply chains.

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HMJKR-4A — BEARING,PLAIN,ROD END

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