PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20303Bearing,sleeve

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3120-00-288-5914 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-288-5914 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-288-5914. Primary manufacturer part number: 20303.
Features
  • Bearing,sleeve — FSC 3120
  • Surface Finish: 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
  • Antirotation/lubrication Type and Quantity: 4 HOLE
  • Body Outside Diameter: 1.9360 INCHES MINIMUM AND 1.9365 INCHES MAXIMUM IN
  • Material: COPPER ALLOY 905 OVERALL
  • Body Inside Diameter: 1.6850 INCHES MINIMUM AND 1.6855 INCHES MAXIMUM IN
  • Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 905 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-288-5914, is classified within Federal Supply Class 3120 (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 13 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-288-5914
Primary Part Number20303
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Surface Finish32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Antirotation/lubrication Type and Quantity4 HOLE
Body Outside Diameter1.9360 INCHES MINIMUM AND 1.9365 INCHES MAXIMUM IN
MaterialCOPPER ALLOY 905 OVERALL
Body Inside Diameter1.6850 INCHES MINIMUM AND 1.6855 INCHES MAXIMUM IN
Surface Finish32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Material Document and ClassificationAMS 4846 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.0625 INCHES NOMINAL FIRST IN
Corner ShapeCHAMFERED INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4140-00-136-9214476730 INTERCHANGEABLE
Guard,fan Impeller
Rotron Incorporated
3110-00-144-8542 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-6757G10531P11 INTERCHANGEABLE
Bearing,ball,annular
Siemens Energy, Inc.
5945-00-346-1704SM-D-321672 INTERCHANGEABLE
Relay Assembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-050-907620303 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5365-01-165-262220303 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
6515-01-291-301120303 INTERCHANGEABLE
Clip,nose,spirometry
Vitalograph Inc
6240-01-463-5858 INTERCHANGEABLE
Lamp,fluorescent
5998-01-515-246320303 INTERCHANGEABLE
Holder,electrical Card
Acterna Llc Dba Jdsu
5120-01-601-562720303 INTERCHANGEABLE
Wrench,torque
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
20303 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
AS20303 Aircraft Supplies (USA)
20303 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
4140-00-136-9214INTERCHANGEABLE
GUARD,FAN IMPELLER
476730
3110-00-144-8542INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-6757INTERCHANGEABLE
BEARING,BALL,ANNULAR
G10531P11
5945-00-346-1704INTERCHANGEABLE
RELAY ASSEMBLY
SM-D-321672
4820-01-050-9076INTERCHANGEABLE
VALVE,SAFETY RELIEF
20303
5365-01-165-2622INTERCHANGEABLE
SHIM
20303
6515-01-291-3011INTERCHANGEABLE
CLIP,NOSE,SPIROMETRY
20303
6240-01-463-5858INTERCHANGEABLE
LAMP,FLUORESCENT
5998-01-515-2463INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
20303
5120-01-601-5627INTERCHANGEABLE
WRENCH,TORQUE
20303

Frequently Asked Questions

What is NSN 3120-00-288-5914?

NSN 3120-00-288-5914 is a Bearing,sleeve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-288-5914?

NSN 3120-00-288-5914 has 3 cross-referenced part numbers: 20303 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), AS20303 (Aircraft Supplies), 20303 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 3120-00-288-5914?

There are 10 known substitutes for 3120-00-288-5914: 4140-00-136-9214, 3110-00-144-8542, 3110-00-156-6757 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20303?

Key specifications for 20303: Surface Finish: 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Antirotation/lubrication Type and Quantity: 4 HOLE; Body Outside Diameter: 1.9360 INCHES MINIMUM AND 1.9365 INCHES MAXIMUM IN; Material: COPPER ALLOY 905 OVERALL. 14 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