PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27645-6Bearing,ball,airframe

Sae International Dba Sae International · NSN 3110-00-042-4810 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-042-4810 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-042-4810. Primary manufacturer part number: MS27645-6.
Features
  • Bearing,ball,airframe — FSC 3110
  • Seal Quantity: 2
  • Alignment Type: SELF-ALIGNING
  • Self-Alignment Location: INTERNAL
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
  • Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
  • Load Direction: RADIAL
  • Inner Ring Width: 0.6200 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E51100 or Steel Comp E52100 Ball construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-042-4810, 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 10 commercial cross-references from 8 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
NSN3110-00-042-4810
Primary Part NumberMS27645-6
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Seal Quantity2
Alignment TypeSELF-ALIGNING
Self-Alignment LocationINTERNAL
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Load DirectionRADIAL
Inner Ring Width0.6200 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Outer Ring Width0.4690 INCHES NOMINAL IN
Bore Diameter0.3750 INCHES NOMINAL IN
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 BALL
MaterialSTEEL COMP E52100 INNER RING
Overall Outside Diameter1.4375 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
Material Document and ClassificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
MaterialSTEEL COMP E52100 OUTER RING
MaterialSTEEL CORROSION RESISTING RETAINER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-042-4803MS27645-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4805 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-042-4806 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-042-4808MS27645-5 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4823KSP6A INTERCHANGEABLE
Bearing,ball,airframe
New Hampshire Ball Bearings Inc Div Hitech Division
3110-00-042-4833MS27645-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-124-2374MS27645-6G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-140-9586MS27645-3AG INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4313MS27645-3G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-316-79774130612B10 INTERCHANGEABLE
Bearing,ball,airframe
Rbc Aircraft Products, Inc.
Cross-Reference Index
Part NumberManufacturer
AS27645 Society of Automotive Engineers Inc (USA)
MS27645-6 Society of Automotive Engineers Inc (USA)
KSP6FS464 Rbc Aircraft Products, Inc. (USA)
KSP6 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
KSP6FS464 Timken Co Div the Timken Company (USA)
MS27645-6 PRIMARY Sae International Dba Sae International (USA)
AS27645 Sae International Dba Sae International (USA)
940.83.28.508 Pilatus Aircraft Ltd (CHE)
MS27645-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KSP6 Skf Usa Inc. (USA)
Related Parts
3110-00-042-4803INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-10
3110-00-042-4805INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4806INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4808INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-5
3110-00-042-4823INTERCHANGEABLE
BEARING,BALL,AIRFRAME
KSP6A
3110-00-042-4833INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-8
3110-00-124-2374INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6G
3110-00-140-9586INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-3AG
3110-00-142-4313INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-3G
3110-00-316-7977INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4130612B10
3110-00-514-8569INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6AR
3110-01-122-6285INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MKSP2FS428

Frequently Asked Questions

What is NSN 3110-00-042-4810?

NSN 3110-00-042-4810 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 3110-00-042-4810?

NSN 3110-00-042-4810 has 10 cross-referenced part numbers: AS27645 (Society of Automotive Engineers Inc), MS27645-6 (Society of Automotive Engineers Inc), KSP6FS464 (Rbc Aircraft Products, Inc.), KSP6 (Schatz Bearing Corporation Dba Schatz Bearing Corp), KSP6FS464 (Timken Co Div the Timken Company) and 5 more.

What NSN replaces 3110-00-042-4810?

There are 12 known substitutes for 3110-00-042-4810: 3110-00-042-4803, 3110-00-042-4805, 3110-00-042-4806 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27645-6?

Key specifications for MS27645-6: Seal Quantity: 2; Alignment Type: SELF-ALIGNING; Self-Alignment Location: INTERNAL; Special Features: 80 PCT. FULL OF MIL-G-81322,AXIAL PLAY 0.030 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. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-042-4810 still in active supply?

NSN 3110-00-042-4810 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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