PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27645-3Bearing,ball,airframe

Sae International Dba Sae International · NSN 3110-00-042-4804 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-042-4804 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-042-4804. Primary manufacturer part number: MS27645-3.
Features
  • Bearing,ball,airframe — FSC 3110
  • Bore Diameter: 0.1900 INCHES NOMINAL IN
  • Self-Alignment Location: INTERNAL
  • Seal Quantity: 2
  • Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
  • Inner Ring Width: 0.2970 INCHES NOMINAL IN
  • Bearing Seal Type: CONTACT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Retainer construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-042-4804, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-042-4804
Primary Part NumberMS27645-3
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Bore Diameter0.1900 INCHES NOMINAL IN
Self-Alignment LocationINTERNAL
Seal Quantity2
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Inner Ring Width0.2970 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Load DirectionRADIAL
Alignment TypeSELF-ALIGNING
Outer Ring Width0.2700 INCHES NOMINAL IN
Material Document and ClassificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
MaterialSTEEL CORROSION RESISTING RETAINER
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 BALL
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 INNER RING
Overall Outside Diameter0.7774 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-042-4803MS27645-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4805 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-042-4807MS27645-4A INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4809MS27645-5A INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4833MS27645-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-514-8569MS27645-6AR INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
KSP3FS464 Rbc Aircraft Products, Inc. (USA)
SAE AS27645-3 Society of Automotive Engineers Inc (USA)
MS27645-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KSP3FS464 Timken Co Div the Timken Company (USA)
AS27645-3 Sae International Dba Sae International (USA)
KSP3 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
MS27645-3 PRIMARY Sae International Dba Sae International (USA)
AS27645-3 Society of Automotive Engineers Inc (USA)
SAE AS27645 Society of Automotive Engineers Inc (USA)
MS27645-3 Society of Automotive Engineers Inc (USA)
KSP3 Skf Usa Inc. (USA)
940.83.28.505 Pilatus Aircraft Ltd (CHE)
SAE AS27645 Sae International Dba Sae International (USA)
Related Parts
3110-00-042-4803INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-10
3110-00-042-4805INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4807INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-4A
3110-00-042-4809INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-5A
3110-00-042-4833INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-8
3110-00-514-8569INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6AR

Frequently Asked Questions

What is NSN 3110-00-042-4804?

NSN 3110-00-042-4804 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-042-4804?

NSN 3110-00-042-4804 has 13 cross-referenced part numbers: KSP3FS464 (Rbc Aircraft Products, Inc.), SAE AS27645-3 (Society of Automotive Engineers Inc), MS27645-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), KSP3FS464 (Timken Co Div the Timken Company), AS27645-3 (Sae International Dba Sae International) and 8 more.

What NSN replaces 3110-00-042-4804?

There are 6 known substitutes for 3110-00-042-4804: 3110-00-042-4803, 3110-00-042-4805, 3110-00-042-4807 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27645-3?

Key specifications for MS27645-3: Bore Diameter: 0.1900 INCHES NOMINAL IN; Self-Alignment Location: INTERNAL; Special Features: 80 PCT. FULL OF MIL-G-81322,AXIAL PLAY 0.023 IN. MAX.,HEAT TREAT RINGS AND BALLS TO ROCKWELL C 60 TO 66 AND STABILIZED FOR OPERATION AT 250 DEG.F,10 DEG SELF-ALIGNING IN EITHER DIRECTION IN; Seal Quantity: 2. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-042-4804 still in active supply?

NSN 3110-00-042-4804 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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