PartsTable
Technical Data Sheet
MIL-B-81934/1 ✓ Verified by PartsTable
· BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The MIL-B-81934/1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-003-4099, 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-81934/1
NSN: 3120-00-003-4099
FSC: 3120
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-B-81934/1
NSN3120-00-003-4099
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MIL-B-81934/1 · 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
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
BODY OUTSIDE DIAMETER: 0.8137 INCHES MINIMUM AND 0.8142 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AISI 410 ASSN STD 2ND MATERIAL RESPONSE OR AISI 416 ASSN STD 3RD MATERIAL RESPONSE OUTER LAYER
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPE: SQUARE ALL CORNERS
BODY INSIDE DIAMETER: 0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
BODY OUTSIDE DIAMETER0.8137 INCHES MINIMUM AND 0.8142 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AISI 410 ASSN STD 2ND MATERIAL RESPONSE OR AISI 416 ASSN STD 3RD MATERIAL RESPONSE OUTER LAYER
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY
CORNER SHAPESQUARE ALL CORNERS
BODY INSIDE DIAMETER0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN
OVERALL LENGTH0.4900 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AS81934/1Interchangeable
interchangeable cross-reference
interchangeable
M81934/1-10C016Interchangeable
interchangeable cross-reference
interchangeable
AS81934Interchangeable
interchangeable cross-reference
interchangeable
06-211-10-016Interchangeable
Same NIIN cross-reference
interchangeable
KDJ10C016-240Interchangeable
Same NIIN cross-reference
interchangeable
MS21240-10C016Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-B-81934/1?
MIL-B-81934/1 is a MIL-B-81934/1.
What parts can replace MIL-B-81934/1?
There are 8 known substitutes for MIL-B-81934/1: AS81934/1, M81934/1-10C016, AS81934 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-B-81934/1?
MIL-B-81934/1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-003-4099. This indicates validated use in U.S. government and defense supply chains.
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