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Technical Data Sheet

M81935/4-4KL — BEARING,PLAIN,ROD END

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

M81935/4-4KL: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE INTERNAL OUTER MEMBER, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_length: 1.8560 INCHES NOMINAL IN, hardness_rating: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-352-2800, 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
M81935/4-4KL
NSN: 3120-01-352-2800
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE INTERNAL OUTER MEMBER
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_length1.8560 INCHES NOMINAL IN
hardness_rating55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
thread_diameter0.250 INCHES NOMINAL IN
special_featuresKEY WAY IN SHANK
style_designatorBALL TYPE
thread_directionLEFT-HAND
surface_treatmentCADMIUM AND CHROMATE ROD END BODY
inner_member_width0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
NSN3120-01-352-2800
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: M81935/4-4KL · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK THREAD LENGTH: 0.7440 INCHES MINIMUM AND 0.8060 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY
•
BORE CENTER TO SHANK END DISTANCE: 1.4330 INCHES MINIMUM AND 1.4530 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
•
HARDNESS RATING: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
•
OUTER MEMBER WIDTH: 0.2550 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BALL TYPE
TECHNICAL CHARACTERISTICS
SHANK THREAD LENGTH0.7440 INCHES MINIMUM AND 0.8060 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE ROD END BODY
BORE CENTER TO SHANK END DISTANCE1.4330 INCHES MINIMUM AND 1.4530 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM ROD END BODY
OUTER MEMBER WIDTH0.2550 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM IN
STYLE DESIGNATORBALL TYPE
THREAD DIAMETER0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER
SUBSTITUTES & CROSS-REFERENCES 3
AS81935Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-B-81935/4Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS81935/4Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 M81935/4-4KL?
M81935/4-4KL is a BEARING,PLAIN,ROD END.
What parts can replace M81935/4-4KL?
There are 3 known substitutes for M81935/4-4KL: AS81935, MIL-B-81935/4, SAE-AS81935/4. Substitute compatibility should be verified for your specific system.
What is the NSN for M81935/4-4KL?
M81935/4-4KL is cataloged in the U.S. Government catalog under NSN 3120-01-352-2800. This indicates validated use in U.S. government and defense supply chains.
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