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Technical Data Sheet
PartsTable / COMPONENT / D-142
D-142 ✓ 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 GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213 OVERALL, body_style: PLAIN, SOLID, bore_style: W/COUNTERBORE COUNTER BORE SECOND END, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 27.2667 DEGREES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-352-5730, 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
D-142
NSN: 3120-00-352-5730
FSC: 3120
CAGE: 59690 — KOEHRING CO LORAIN DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
body_stylePLAIN, SOLID
bore_styleW/COUNTERBORE COUNTER BORE SECOND END
teeth_typeSINGLE HELIX
tooth_formSTANDARD
helix_angle27.2667 DEGREES
corner_shapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
flange_width0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
overall_length2.9900 INCHES MINIMUM AND 3.0100 INCHES MAXIMUM IN
pitch_diameter2.0585 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity22
NSN3120-00-352-5730
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D-142 · 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
•
LUBRICANT ACCOMMODATION STYLE: GROOVED OPEN BOTH ENDS
•
FLANGE OUTSIDE DIAMETER: 6.6150 INCHES MINIMUM AND 6.6350 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 5.0044 INCHES MINIMUM AND 5.0066 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 5.6272 INCHES MINIMUM AND 5.6294 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICANT ACCOMMODATION STYLEGROOVED OPEN BOTH ENDS
FLANGE OUTSIDE DIAMETER6.6150 INCHES MINIMUM AND 6.6350 INCHES MAXIMUM IN
BODY INSIDE DIAMETER5.0044 INCHES MINIMUM AND 5.0066 INCHES MAXIMUM IN
FLANGE WIDTH0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER5.6272 INCHES MINIMUM AND 5.6294 INCHES MAXIMUM IN
OVERALL LENGTH2.9900 INCHES MINIMUM AND 3.0100 INCHES MAXIMUM IN
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
MATERIALCOPPER ALLOY 937 OVERALL
CORNER SHAPEROUND LEFT FLANGE BODY CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
GD87BInterchangeable
interchangeable cross-reference
interchangeable
WPP57Interchangeable
interchangeable cross-reference
interchangeable
2273Interchangeable
interchangeable cross-reference
interchangeable
D-142Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D-142?
D-142 is a GEAR,HELICAL.
What parts can replace D-142?
There are 4 known substitutes for D-142: GD87B, WPP57, 2273 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D-142?
D-142 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-352-5730. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026