PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R2PPK4-8Bearing,ball,annular

New Hampshire Ball Bearings Inc Div Hitech Division · NSN 3110-00-135-2598 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-135-2598 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-135-2598. Primary manufacturer part number: R2PPK4-8.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: RADIAL
  • Surface Finish: GROUND
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Shield Quantity: 2
  • Overall Outside Diameter: 0.3750 INCHES NOMINAL IN
  • Bore Diameter: 0.1250 INCHES NOMINAL IN
  • Internal Fit-Up Designation: STANDARD
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-135-2598, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is New Hampshire Ball Bearings Inc Div Hitech Division. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-135-2598
Primary Part NumberR2PPK4-8
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerNew Hampshire Ball Bearings Inc Div Hitech Division
StatusACTIVE
Load DirectionRADIAL
Surface FinishGROUND
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Shield Quantity2
Overall Outside Diameter0.3750 INCHES NOMINAL IN
Bore Diameter0.1250 INCHES NOMINAL IN
Internal Fit-Up DesignationSTANDARD
Lubrication Material Document and ClassificationUNITEMP 500,FSCM 59595 MFR REF SINGLE MATERIAL RESPONSE
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialGREASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-01-073-72086157-P-36-13 INTERCHANGEABLE
Bearing
Aerocontrolex Group, Inc. Div Talley Actuators
Cross-Reference Index
Part NumberManufacturer
R2FFM Skf Usa Inc. (USA)
77R2XR1CJ2 General Motors Corp Delco Moraine Ndh Div (USA)
R2PPK4-8 PRIMARY New Hampshire Ball Bearings Inc Div Hitech Division (USA)
33KDD3E9924 PRIMARY Timken Co Div the Timken Company (USA)
N08242ZE3FJ Reed Instrument Bearing Co (USA)
P33KDD3E9924 Timken Co Div the Timken Company (USA)
TS1000-90 Aerocontrolex Group, Inc. Div Talley Actuators (USA)
Related Parts
3110-01-073-7208INTERCHANGEABLE
BEARING
6157-P-36-13

Frequently Asked Questions

What is NSN 3110-00-135-2598?

NSN 3110-00-135-2598 is a Bearing,ball,annular, manufactured by New Hampshire Ball Bearings Inc Div Hitech Division, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-135-2598?

NSN 3110-00-135-2598 has 7 cross-referenced part numbers: R2FFM (Skf Usa Inc.), 77R2XR1CJ2 (General Motors Corp Delco Moraine Ndh Div), R2PPK4-8 (New Hampshire Ball Bearings Inc Div Hitech Division), 33KDD3E9924 (Timken Co Div the Timken Company), N08242ZE3FJ (Reed Instrument Bearing Co) and 2 more.

What NSN replaces 3110-00-135-2598?

There is 1 known substitute for 3110-00-135-2598: 3110-01-073-7208. Verify interchangeability with system specifications before substitution.

What are the specifications of R2PPK4-8?

Key specifications for R2PPK4-8: Load Direction: RADIAL; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Shield Quantity: 2. 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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