PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

748537Bearing,ball,annular

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3110-00-113-3670 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-113-3670 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-113-3670. Primary manufacturer part number: 748537.
Features
  • Bearing,ball,annular — FSC 3110
  • Internal Clearance: 0.0003 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
  • Precious Material: SILVER
  • Standard Tolerance Designation: ABEC NO.3
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Surface Finish: GROUND
  • Overall Outside Diameter: 1.8504 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-113-3670, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-113-3670
Primary Part Number748537
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Internal Clearance0.0003 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
Precious MaterialSILVER
Standard Tolerance DesignationABEC NO.3
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Surface FinishGROUND
Overall Outside Diameter1.8504 INCHES NOMINAL IN
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Precious Material and LocationRETAINER SILVER
Bore Diameter0.7874 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5935-00-221-9308 INTERCHANGEABLE
Connector,receptacle,electrical
2925-00-695-414310-319528-1 INTERCHANGEABLE
Lead Assy,igniter P
Unison Industries Llc
5330-01-096-9096556626 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-01-108-3779528469 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5935-01-508-4147613014 INTERCHANGEABLE
Connector,plug,electrical
Itt Cannon Llc
Cross-Reference Index
Part NumberManufacturer
691008 Mpb Corporation Dba Mpb Corp (USA)
798741 Skf Usa Inc. (USA)
748537 Rtx Corporation Div Pratt & Whitney (USA)
528470 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
691008 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
627332 Timken Co Div the Timken Company (USA)
748537 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
528469 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
613014 Rtx Corporation Div Pratt & Whitney (USA)
627332 Rtx Corporation Div Pratt & Whitney (USA)
627332 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
613014 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
691008 Rtx Corporation Div Pratt & Whitney (USA)
Related Parts
5935-00-221-9308INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2925-00-695-4143INTERCHANGEABLE
LEAD ASSY,IGNITER P
10-319528-1
5330-01-096-9096INTERCHANGEABLE
SEAL,PLAIN ENCASED
556626
5330-01-108-3779INTERCHANGEABLE
SEAL,PLAIN ENCASED
528469
5935-01-508-4147INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
613014

Frequently Asked Questions

What is NSN 3110-00-113-3670?

NSN 3110-00-113-3670 is a Bearing,ball,annular, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-113-3670?

NSN 3110-00-113-3670 has 13 cross-referenced part numbers: 691008 (Mpb Corporation Dba Mpb Corp), 798741 (Skf Usa Inc.), 748537 (Rtx Corporation Div Pratt & Whitney), 528470 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 691008 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 8 more.

What NSN replaces 3110-00-113-3670?

There are 5 known substitutes for 3110-00-113-3670: 5935-00-221-9308, 2925-00-695-4143, 5330-01-096-9096 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 748537?

Key specifications for 748537: Internal Clearance: 0.0003 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN; Precious Material: SILVER; Standard Tolerance Designation: ABEC NO.3; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-113-3670 still in active supply?

NSN 3110-00-113-3670 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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