PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TRD-1220Seat,bearing

Timken Aerospace, Inc Dba Torrington Product · NSN 3110-01-193-3374 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-193-3374 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-193-3374. Primary manufacturer part number: TRD-1220.
Features
  • Seat,bearing — FSC 3110
  • Material: STEEL OVERALL
  • Style Designator: FLAT RACE SURFACE
  • Outside Diameter: 1.2500 INCHES NOMINAL IN
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • Bore Diameter: 0.7500 INCHES NOMINAL IN
  • 5 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Seat,bearing, cataloged under National Stock Number 3110-01-193-3374, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-193-3374
Primary Part NumberTRD-1220
Item NameSeat,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Aerospace, Inc Dba Torrington Product
StatusACTIVE
MaterialSTEEL OVERALL
Style DesignatorFLAT RACE SURFACE
Outside Diameter1.2500 INCHES NOMINAL IN
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Bore Diameter0.7500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3120-00-935-572978330PC55SH16 INTERCHANGEABLE
Bearing,washer,thrust
Hamill Manufacturing Company Dba Hamill Manufacturing Co
3110-01-193-3375 INTERCHANGEABLE
Retainer and Rollers,bearing
Cross-Reference Index
Part NumberManufacturer
TRD-1220 Timken Aerospace, Inc Dba Torrington Product (USA)
CAT. 580 Timken Aerospace, Inc Dba Torrington Product (USA)
820-5952575 PC 3 Naval Sea Systems Command (USA)
D2165-1PC192 P J Valves Inc (USA)
D-1452PC36 P J Valves Inc (USA)
Related Parts
3120-00-935-5729INTERCHANGEABLE
BEARING,WASHER,THRUST
78330PC55SH16
3110-01-193-3375INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING

Frequently Asked Questions

What is NSN 3110-01-193-3374?

NSN 3110-01-193-3374 is a Seat,bearing, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-193-3374?

NSN 3110-01-193-3374 has 5 cross-referenced part numbers: TRD-1220 (Timken Aerospace, Inc Dba Torrington Product), CAT. 580 (Timken Aerospace, Inc Dba Torrington Product), 820-5952575 PC 3 (Naval Sea Systems Command), D2165-1PC192 (P J Valves Inc), D-1452PC36 (P J Valves Inc).

What NSN replaces 3110-01-193-3374?

There are 2 known substitutes for 3110-01-193-3374: 3120-00-935-5729, 3110-01-193-3375. Verify interchangeability with system specifications before substitution.

What are the specifications of TRD-1220?

Key specifications for TRD-1220: Material: STEEL OVERALL; Style Designator: FLAT RACE SURFACE; Outside Diameter: 1.2500 INCHES NOMINAL IN; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 7 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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