PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303-27Bearing,ball,annular

Hamilton Sundstrand Corporation · NSN 3110-00-293-8443 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-293-8443 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-293-8443. Primary manufacturer part number: 303-27.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: RADIAL
  • Bore Diameter: 0.8750 INCHES NOMINAL IN
  • Internal Fit-Up Designation: STANDARD
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Bore Shape: STRAIGHT
  • Overall Outside Diameter: 1.8750 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 3110-00-293-8443, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-293-8443
Primary Part Number303-27
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusCANCELLED
Load DirectionRADIAL
Bore Diameter0.8750 INCHES NOMINAL IN
Internal Fit-Up DesignationSTANDARD
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Bore ShapeSTRAIGHT
Overall Outside Diameter1.8750 INCHES NOMINAL IN
Surface FinishGROUND
Standard Tolerance DesignationABEC NO.1
Retainer Fabrication MethodPRESSED
Shield Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-003-0610 INTERCHANGEABLE
Screw,cap,socket Head
4820-00-031-561811030 INTERCHANGEABLE
Valve,linear,directional Control
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
6685-00-065-2041 INTERCHANGEABLE
Thermometer,self-Indicating,bime
4820-00-220-18472012 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
5340-00-282-7519MS21333-34 INTERCHANGEABLE
Clamp,loop
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4210-00-394-311611030 INTERCHANGEABLE
Bellows
Industrial Technologies and Services Llc
4720-00-447-9196LL67 INTERCHANGEABLE
Hose,preformed
Wisconsin Motors, Llc
1005-00-566-366411030 INTERCHANGEABLE
Stop,gun Charger
Nobles Worldwide, Inc.
5330-00-641-217045200-081 INTERCHANGEABLE
Seal,plain Encased
Terex Usa, Llc Dba Terex Equipment Services
5355-00-644-160430327 INTERCHANGEABLE
Pointer,dial
Johnson Controls, Inc Div Building Efficiency
Cross-Reference Index
Part NumberManufacturer
303-27 PRIMARY Hamilton Sundstrand Corporation (USA)
S9RP PRIMARY Fag Bearings Corporation (USA)
7R14X1 General Motors Corp (USA)
7R14 General Motors Corp (USA)
319687-400 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
11030 Champion Aviation Products Co (USA)
R14F-1B1 PRIMARY Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
177039-88 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
1390351 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
11030 Champion Mfg Co
7R14X1E General Motors Corp (USA)
S9RPTF PRIMARY Fag Bearings Corporation (USA)
7R14XR1 General Motors Corp (USA)
BE60-50 Hughes Missile Systems Co San Diego (USA)
S9RF1M1 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
S9RF Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
7R14X1 General Motors Corp Delco Moraine Ndh Div (USA)
7R14 General Motors Corp Delco Moraine Ndh Div (USA)
7R14X1E General Motors Corp Delco Moraine Ndh Div (USA)
7R14XR1 General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
5305-00-003-0610INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
4820-00-031-5618INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
11030
6685-00-065-2041INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
4820-00-220-1847INTERCHANGEABLE
STEM,FLUID VALVE
2012
5340-00-282-7519INTERCHANGEABLE
CLAMP,LOOP
MS21333-34
4210-00-394-3116INTERCHANGEABLE
BELLOWS
11030
4720-00-447-9196INTERCHANGEABLE
HOSE,PREFORMED
LL67
1005-00-566-3664INTERCHANGEABLE
STOP,GUN CHARGER
11030
5330-00-641-2170INTERCHANGEABLE
SEAL,PLAIN ENCASED
45200-081
5355-00-644-1604INTERCHANGEABLE
POINTER,DIAL
30327
5905-00-686-2806INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4930-00-944-2993INTERCHANGEABLE
VALVE ASSY
524613-7

Frequently Asked Questions

What is NSN 3110-00-293-8443?

NSN 3110-00-293-8443 is a Bearing,ball,annular, manufactured by Hamilton Sundstrand Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-293-8443?

NSN 3110-00-293-8443 has 21 cross-referenced part numbers: 303-27 (Hamilton Sundstrand Corporation), S9RP (Fag Bearings Corporation), 7R14X1 (General Motors Corp), 7R14 (General Motors Corp), 319687-400 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 16 more.

What NSN replaces 3110-00-293-8443?

There are 12 known substitutes for 3110-00-293-8443: 5305-00-003-0610, 4820-00-031-5618, 6685-00-065-2041 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 303-27?

Key specifications for 303-27: Load Direction: RADIAL; Bore Diameter: 0.8750 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-293-8443 still in active supply?

NSN 3110-00-293-8443 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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