PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U540Bearing,ball,annular

Fag Bearings Corporation · NSN 3110-00-156-5083 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-5083 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-5083. Primary manufacturer part number: U540.
Features
  • Bearing,ball,annular — FSC 3110
  • Style Designator: NON-SEPARABLE
  • Internal Fit-Up Contact Angular Direction: INWARD CONVERGENT
  • Self-Alignment Location: INTERNAL
  • Alignment Type: SELF-ALIGNING
  • Internal Fit-Up Designation: STANDARD
  • Material: STEEL OVERALL
  • Style Designator: NON-SEPARABLE
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 3110-00-156-5083, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-156-5083
Primary Part NumberU540
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusACTIVE
Style DesignatorNON-SEPARABLE
Internal Fit-Up Contact Angular DirectionINWARD CONVERGENT
Self-Alignment LocationINTERNAL
Alignment TypeSELF-ALIGNING
Internal Fit-Up DesignationSTANDARD
MaterialSTEEL OVERALL
Style DesignatorNON-SEPARABLE
Bore ShapeSTRAIGHT
Overall Outside Diameter110.00 MILLIMETERS NOMINAL MM
Self-Alignment LocationINTERNAL
Load DirectionANGULAR
Alignment TypeSELF-ALIGNING
MaterialSTEEL OVERALL
Standard Tolerance DesignationABEC NO.1
Standard Tolerance DesignationABEC NO.1
Internal Fit-Up DesignationSTANDARD
Internal Fit-Up Contact Angular DirectionINWARD CONVERGENT
Surface FinishGROUND
Load DirectionANGULAR
Retainer Fabrication MethodPRESSED
Bore Diameter40.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-195-842210408 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
5950-00-435-769811069515 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Aviation and Missile Command
5310-00-550-3715MS35333-70 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5977-00-897-597910408 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5999-01-013-779901-0101-0408 INTERCHANGEABLE
Wire Mesh,knitted
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5331-01-077-68342-237N674-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5360-01-124-5681 INTERCHANGEABLE
Spring
5310-01-162-2514 INTERCHANGEABLE
Nut,plain,hexagon
5120-01-189-7295 INTERCHANGEABLE
Socket,socket Wrench
5962-01-291-6195 INTERCHANGEABLE
Microcircuit,linear
Cross-Reference Index
Part NumberManufacturer
U540 PRIMARY Fag Bearings Corporation (USA)
72-6970-073 PRIMARY Fairbanks Morse, Llc (USA)
72-6970-073 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
1408SA Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
148006 PRIMARY General Electric Company (USA)
10408 PRIMARY Skf Usa Inc. (USA)
10408 Equitable Bearing Co Inc (USA)
Related Parts
4320-00-195-8422INTERCHANGEABLE
RING,WEARING
10408
5950-00-435-7698INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
11069515
5310-00-550-3715INTERCHANGEABLE
WASHER,LOCK
MS35333-70
5977-00-897-5979INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10408
5999-01-013-7799INTERCHANGEABLE
WIRE MESH,KNITTED
01-0101-0408
5331-01-077-6834INTERCHANGEABLE
O-RING
2-237N674-70
5360-01-124-5681INTERCHANGEABLE
SPRING
5310-01-162-2514INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5120-01-189-7295INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5962-01-291-6195INTERCHANGEABLE
MICROCIRCUIT,LINEAR
4910-01-382-2065INTERCHANGEABLE
JACK,DOLLY TYPE,HYDRAULIC
10408
5310-01-422-8201INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6350994 ITEM 20

Frequently Asked Questions

What is NSN 3110-00-156-5083?

NSN 3110-00-156-5083 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-156-5083?

NSN 3110-00-156-5083 has 7 cross-referenced part numbers: U540 (Fag Bearings Corporation), 72-6970-073 (Fairbanks Morse, Llc), 72-6970-073 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), 1408SA (Schatz Bearing Corporation Dba Schatz Bearing Corp), 148006 (General Electric Company) and 2 more.

What NSN replaces 3110-00-156-5083?

There are 12 known substitutes for 3110-00-156-5083: 4320-00-195-8422, 5950-00-435-7698, 5310-00-550-3715 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of U540?

Key specifications for U540: Style Designator: NON-SEPARABLE; Internal Fit-Up Contact Angular Direction: INWARD CONVERGENT; Self-Alignment Location: INTERNAL; Alignment Type: SELF-ALIGNING. 23 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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