PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203SZZ1Bearing,ball,annular

Skf Usa Inc. · NSN 3110-00-275-0143 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-275-0143 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-275-0143. Primary manufacturer part number: 203SZZ1.
Features
  • Bearing,ball,annular — FSC 3110
  • Material: STEEL OUTER RING
  • Material: RUBBER SYNTHETIC SEAL
  • Material: STEEL INNER RING
  • Standard Tolerance Designation: ABEC NO.1
  • Seal Quantity: 2
  • Surface Finish: GROUND
  • Retainer Fabrication Method: PRESSED
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-275-0143, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Skf Usa Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 5 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
NSN3110-00-275-0143
Primary Part Number203SZZ1
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
MaterialSTEEL OUTER RING
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL INNER RING
Standard Tolerance DesignationABEC NO.1
Seal Quantity2
Surface FinishGROUND
Retainer Fabrication MethodPRESSED
Outer Ring Width0.5630 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
Inner Ring Width0.5470 INCHES NOMINAL IN
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL RETAINER
Bore Diameter17.0 MILLIMETERS NOMINAL MM
MaterialSTEEL BALL
Overall Outside Diameter40.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6240-00-926-7603380 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Lighting Products Group Hillsboro Miniature Lamp Plant
2840-01-381-68504080811 INTERCHANGEABLE
Seal Ring,labyrinth,aircraft Gas
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
ND90587-10 Magnetics Intl Inc (USA)
ND90594-11 Magnetics Intl Inc (USA)
9017DDG99 Fag Bearings Corporation (USA)
ND90580-7 Magnetics Intl Inc (USA)
ND90546-17 Magnetics Intl Inc (USA)
ND90591-11 Magnetics Intl Inc (USA)
ND90613-12 Magnetics Intl Inc (USA)
ND90591-23 Magnetics Intl Inc (USA)
ND90546-11 Magnetics Intl Inc (USA)
ND90596-12 Magnetics Intl Inc (USA)
ND90580-17 Magnetics Intl Inc (USA)
ND90582-11 Magnetics Intl Inc (USA)
ND90593-25 Magnetics Intl Inc (USA)
ND90547-6 Magnetics Intl Inc (USA)
ND90595-22 Magnetics Intl Inc (USA)
4974-17 Western Sky Industries Inc Dba Electromech Techologies (USA)
ND90588-11 Magnetics Intl Inc (USA)
ND90594-22 Magnetics Intl Inc (USA)
ND90596-11 Magnetics Intl Inc (USA)
ND90560-15 Magnetics Intl Inc (USA)
Related Parts
6240-00-926-7603INTERCHANGEABLE
LAMP,INCANDESCENT
380
2840-01-381-6850INTERCHANGEABLE
SEAL RING,LABYRINTH,AIRCRAFT GAS
4080811

Frequently Asked Questions

What is NSN 3110-00-275-0143?

NSN 3110-00-275-0143 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-275-0143?

NSN 3110-00-275-0143 has 33 cross-referenced part numbers: ND90587-10 (Magnetics Intl Inc), ND90594-11 (Magnetics Intl Inc), 9017DDG99 (Fag Bearings Corporation), ND90580-7 (Magnetics Intl Inc), ND90546-17 (Magnetics Intl Inc) and 28 more.

What NSN replaces 3110-00-275-0143?

There are 2 known substitutes for 3110-00-275-0143: 6240-00-926-7603, 2840-01-381-6850. Verify interchangeability with system specifications before substitution.

What are the specifications of 203SZZ1?

Key specifications for 203SZZ1: Material: STEEL OUTER RING; Material: RUBBER SYNTHETIC SEAL; Material: STEEL INNER RING; Standard Tolerance Designation: ABEC NO.1. 19 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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