PartsTable TECHNICAL DATA SHEET
SEPTEMBER 2026Technical Data Sheet

N18937PC527Bearing,ball,annular

Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center · NSN 3110-00-156-8120 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-8120 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-8120. Primary manufacturer part number: N18937PC527.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: ANGULAR
  • Material: STEEL OUTER RING
  • Material: STEEL INNER RING
  • Style Designator: DOUBLE ROW BALL, INTERNAL SELF-ALIGNING, TAPERED BORE WITH STRAIGHT BORE ADAPTER, LOCKNUT AND LOCK WASHER
  • Material: STEEL BALL
  • Internal Fit-Up Designation: STANDARD
  • Bore Diameter: 1.9375 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-156-8120, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System. This item has 14 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the government interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-156-8120
Primary Part NumberN18937PC527
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center
StatusACTIVE
Load DirectionANGULAR
MaterialSTEEL OUTER RING
MaterialSTEEL INNER RING
Style DesignatorDOUBLE ROW BALL, INTERNAL SELF-ALIGNING, TAPERED BORE WITH STRAIGHT BORE ADAPTER, LOCKNUT AND LOCK WASHER
MaterialSTEEL BALL
Internal Fit-Up DesignationSTANDARD
Bore Diameter1.9375 INCHES NOMINAL IN
Bore ShapeSTRAIGHT
Surface FinishGROUND
Overall Outside Diameter100.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 3
3030-00-264-3046403T INTERCHANGEABLE
Belt,v
Gates Corporation
2520-00-770-26312-2-329 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Corp Spicer Transmission Div
4620-01-591-01631511A INTERCHANGEABLE
Vessel Sub Assy
Separation & Recovery Systems Inc
Cross-Reference Index
Part NumberManufacturer
1511A1 15-16 Skf Usa Inc. (USA)
N7810PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
N9833PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
N18945ALTCPC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
N9893PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
1511A Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
N7836PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
1511XY Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
N18937PC527 PRIMARY Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
N7728PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
1511A115-16 PRIMARY Skf Usa Inc. (USA)
N9648PC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
V430 PRIMARY American Sawmill Machinery Co (USA)
N18946ALTBPC527 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
Related Parts
3030-00-264-3046INTERCHANGEABLE
BELT,V
403T
2520-00-770-2631INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
2-2-329
4620-01-591-0163INTERCHANGEABLE
VESSEL SUB ASSY
1511A

Frequently Asked Questions

What is NSN 3110-00-156-8120?

NSN 3110-00-156-8120 is a Bearing,ball,annular, manufactured by Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-156-8120?

NSN 3110-00-156-8120 has 14 cross-referenced part numbers: 1511A1 15-16 (Skf Usa Inc.), N7810PC527 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center), N9833PC527 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center), N18945ALTCPC527 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center), N9893PC527 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center) and 9 more.

What NSN replaces 3110-00-156-8120?

There are 3 known substitutes for 3110-00-156-8120: 3030-00-264-3046, 2520-00-770-2631, 4620-01-591-0163. Verify interchangeability with system specifications before substitution.

What are the specifications of N18937PC527?

Key specifications for N18937PC527: Load Direction: ANGULAR; Material: STEEL OUTER RING; Material: STEEL INNER RING; Style Designator: DOUBLE ROW BALL, INTERNAL SELF-ALIGNING, TAPERED BORE WITH STRAIGHT BORE ADAPTER, LOCKNUT AND LOCK WASHER. 12 total characteristics are documented in the Federal Logistics Information System.

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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