PartsTable
Technical Data Sheet

MIL-B-81935/4 — BEARING,PLAIN,ROD END

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MIL-B-81935/4: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 BODY, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2280 INCHES NOMINAL IN, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM BODY, thread_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-325-9897, 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
MIL-B-81935/4
NSN: 3120-01-325-9897
NIINs: 013259897, 013522800, 013666626, 015826860
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4340 BODY
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2280 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM BODY
thread_diameter0.250 INCHES NOMINAL IN
style_designatorBALL TYPE
thread_directionLEFT-HAND
surface_treatmentCADMIUM OVERALL
inner_member_width0.2810 INCHES NOMINAL IN
outer_member_width0.8960 INCHES NOMINAL IN
shank_thread_length0.7750 INCHES NOMINAL IN
NSN3120-01-325-9897
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MIL-B-81935/4 · 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: 1.1560 INCHES MINIMUM AND 1.2180 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: 1.9380 INCHES MINIMUM AND 1.9580 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM RACE INSERT
•
OUTER MEMBER WIDTH: 0.2860 INCHES MINIMUM AND 0.2960 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHANK THREAD LENGTH1.1560 INCHES MINIMUM AND 1.2180 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 DISTANCE1.9380 INCHES MINIMUM AND 1.9580 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.3730 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM RACE INSERT
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 WIDTH0.2860 INCHES MINIMUM AND 0.2960 INCHES MAXIMUM IN
STYLE DESIGNATORBALL TYPE
THREAD DIAMETER0.312 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
M81935/4-05KReference document
Same NSN cross-reference
Reference document — Design control — primary reference
AS81935Reference document
Same NSN cross-reference
Reference document — Secondary reference
KBDE-5-101WSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-AS81935/4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 MIL-B-81935/4?
MIL-B-81935/4 is a BEARING,PLAIN,ROD END.
What parts can replace MIL-B-81935/4?
There are 4 known substitutes for MIL-B-81935/4: M81935/4-05K, AS81935, KBDE-5-101W and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-B-81935/4?
MIL-B-81935/4 is cataloged in the U.S. Government catalog under NSN 3120-01-325-9897. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.