PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

416821-52DBearing,ball,annular

Reliance Electric Company Dba Reliance & Dodge Brands · NSN 3110-00-341-6621 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-341-6621 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-341-6621. Primary manufacturer part number: 416821-52D.
Features
  • Bearing,ball,annular — FSC 3110
  • Lubrication Material: GREASE
  • Bore Shape: STRAIGHT
  • Shield Quantity: 2
  • Surface Finish: GROUND
  • Retainer Fabrication Method: PRESSED
  • Lubrication Material Document and Classification: SRI NO. 2,FSCM 94548 MFR REF SINGLE MATERIAL RESPONSE
  • Load Direction: RADIAL
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 3110-00-341-6621, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-341-6621
Primary Part Number416821-52D
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerReliance Electric Company Dba Reliance & Dodge Brands
StatusCANCELLED
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Shield Quantity2
Surface FinishGROUND
Retainer Fabrication MethodPRESSED
Lubrication Material Document and ClassificationSRI NO. 2,FSCM 94548 MFR REF SINGLE MATERIAL RESPONSE
Load DirectionRADIAL
Internal Fit-Up DesignationLOOSE
Standard Tolerance DesignationABEC NO.1
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Overall Outside Diameter40.00 MILLIMETERS NOMINAL MM
Bore Diameter17.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-145-22496203-2ZRB INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5340-00-637-1939389-20 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
3110-00-776-0643108135 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
4020-01-160-405511589022-1 INTERCHANGEABLE
Rope,fibrous
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
416821-2D Hartzell Fan, Inc. (USA)
801621-018 PIECE 1 Reliance Electric (USA)
17BC02XPP3H26 Anti-Friction Bearing Mfg Assn Inc the (USA)
90C-BEARING The New York Blower Company (USA)
77503ALR1 General Motors Corp Delco Moraine Ndh Div (USA)
706521-66 PC 1 Fm Af, Llc Dba American Fan Company (USA)
203ZZC Fm Af, Llc Dba American Fan Company (USA)
17BC02JDD30-UW Anti-Friction Bearing Mfg Assn Inc the (USA)
416810-1-A Reliance Electric (USA)
416821-2D Fm Af, Llc Dba American Fan Company (USA)
100003-61 Century Electric Inc (USA)
416810-1A Hartzell Fan, Inc. (USA)
416821-52D PRIMARY Reliance Electric Company Dba Reliance & Dodge Brands (USA)
706521-66 PC 1 Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
203SFF General Motors Corp Delco Moraine Ndh Div (USA)
416821-2D Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
416821-2-DNT Naval Inventory Control Point Mechanicsburg (USA)
FF-B-171 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
203SFFLO Skf Usa Inc. (USA)
416821-2D Reliance Electric (USA)
Related Parts
3110-00-145-2249INTERCHANGEABLE
BEARING,BALL,ANNULAR
6203-2ZRB
5340-00-637-1939INTERCHANGEABLE
CLAMP,LOOP
389-20
3110-00-776-0643INTERCHANGEABLE
BEARING,BALL,ANNULAR
108135
4020-01-160-4055INTERCHANGEABLE
ROPE,FIBROUS
11589022-1

Frequently Asked Questions

What is NSN 3110-00-341-6621?

NSN 3110-00-341-6621 is a Bearing,ball,annular, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-341-6621?

NSN 3110-00-341-6621 has 33 cross-referenced part numbers: 416821-2D (Hartzell Fan, Inc.), 801621-018 PIECE 1 (Reliance Electric), 17BC02XPP3H26 (Anti-Friction Bearing Mfg Assn Inc the), 90C-BEARING (The New York Blower Company), 77503ALR1 (General Motors Corp Delco Moraine Ndh Div) and 28 more.

What NSN replaces 3110-00-341-6621?

There are 4 known substitutes for 3110-00-341-6621: 3110-00-145-2249, 5340-00-637-1939, 3110-00-776-0643 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 416821-52D?

Key specifications for 416821-52D: Lubrication Material: GREASE; Bore Shape: STRAIGHT; Shield Quantity: 2; Surface Finish: GROUND. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-341-6621 still in active supply?

NSN 3110-00-341-6621 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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