PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

QB20145Roller,bearing

Timken Aerospace, Inc Dba Torrington Product · NSN 3110-00-355-7821 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-355-7821 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-355-7821. Primary manufacturer part number: QB20145.
Features
  • Roller,bearing — FSC 3110
  • Rolling Element Diameter: 0.3095 INCHES MINIMUM AND 0.3105 INCHES MAXIMUM IN
  • Style Designator: CYLINDRICAL ROLLER, FLAT ENDS
  • Material Document and Classification: 66,AISI/SAE E50100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP E50100 OR STEEL COMP E52100 OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Timken Aerospace, Inc Dba Torrington Product
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E50100 or Steel Comp E52100 Overall construction
General Description

The Roller,bearing, cataloged under National Stock Number 3110-00-355-7821, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-355-7821
Primary Part NumberQB20145
Item NameRoller,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Aerospace, Inc Dba Torrington Product
StatusACTIVE
Rolling Element Diameter0.3095 INCHES MINIMUM AND 0.3105 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL ROLLER, FLAT ENDS
Material Document and Classification66,AISI/SAE E50100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP E50100 OR STEEL COMP E52100 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-203-7499157-6 INTERCHANGEABLE
Coupling Assembly,self-Sealing
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
3020-00-318-05248392324 INTERCHANGEABLE
Gear Cluster
U S Army Tank Automotive Command Amsta-Im-Mm
5910-00-726-0470 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5330-00-920-84631576 INTERCHANGEABLE
Packing,preformed
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5975-01-020-2045 INTERCHANGEABLE
Conduit Outlet
2530-01-067-2325 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
6625-01-077-60741576 INTERCHANGEABLE
Tilt Tester
Davidson Optronics Inc. Dba Doi Venture
5340-01-370-55631576 INTERCHANGEABLE
Bumper
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5940-01-390-37841576 INTERCHANGEABLE
Terminal Board
Heyco Inc Dba Heyco Products
5980-01-527-223715-76 INTERCHANGEABLE
Display,optoelectronic
Anritsu Company
Cross-Reference Index
Part NumberManufacturer
QB20145 PRIMARY Timken Aerospace, Inc Dba Torrington Product (USA)
1576 Warn Industries, Inc. Dba Warn Div Warn Industries (USA)
1576 Warn Industries Inc (USA)
Related Parts
4730-00-203-7499INTERCHANGEABLE
COUPLING ASSEMBLY,SELF-SEALING
157-6
3020-00-318-0524INTERCHANGEABLE
GEAR CLUSTER
8392324
5910-00-726-0470INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5330-00-920-8463INTERCHANGEABLE
PACKING,PREFORMED
1576
5975-01-020-2045INTERCHANGEABLE
CONDUIT OUTLET
2530-01-067-2325INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
6625-01-077-6074INTERCHANGEABLE
TILT TESTER
1576
5340-01-370-5563INTERCHANGEABLE
BUMPER
1576
5940-01-390-3784INTERCHANGEABLE
TERMINAL BOARD
1576
5980-01-527-2237INTERCHANGEABLE
DISPLAY,OPTOELECTRONIC
15-76
1095-01-721-1483INTERCHANGEABLE
SHEAR CABLE,WEAPON SYSTEM
1576

Frequently Asked Questions

What is NSN 3110-00-355-7821?

NSN 3110-00-355-7821 is a Roller,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 3110-00-355-7821?

NSN 3110-00-355-7821 has 3 cross-referenced part numbers: QB20145 (Timken Aerospace, Inc Dba Torrington Product), 1576 (Warn Industries, Inc. Dba Warn Div Warn Industries), 1576 (Warn Industries Inc).

What NSN replaces 3110-00-355-7821?

There are 11 known substitutes for 3110-00-355-7821: 4730-00-203-7499, 3020-00-318-0524, 5910-00-726-0470 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of QB20145?

Key specifications for QB20145: Rolling Element Diameter: 0.3095 INCHES MINIMUM AND 0.3105 INCHES MAXIMUM IN; Overall Length: 0.8650 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN; Style Designator: CYLINDRICAL ROLLER, FLAT ENDS; Material Document and Classification: 66,AISI/SAE E50100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com