PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27641-8Bearing,ball,airframe

Sae International Dba Sae International · NSN 3110-00-042-0440 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-042-0440 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-042-0440. Primary manufacturer part number: MS27641-8.
Features
  • Bearing,ball,airframe — FSC 3110
  • Load Direction: RADIAL
  • Seal Quantity: 2
  • Outer Ring Width: 0.3130 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
  • Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
  • Inner Ring Width: 0.3750 INCHES NOMINAL IN
  • Bearing Seal Type: CONTACT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Outer Ring construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-042-0440, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 10 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
NSN3110-00-042-0440
Primary Part NumberMS27641-8
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Load DirectionRADIAL
Seal Quantity2
Outer Ring Width0.3130 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Inner Ring Width0.3750 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Surface TreatmentCADMIUM OUTER RING
Material Document and ClassificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE SEAL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
MaterialSTEEL COMP E52100 OUTER RING
Surface TreatmentCADMIUM BALL
MaterialSTEEL CORROSION RESISTING RETAINER
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE INNER RING
Surface TreatmentCADMIUM INNER RING
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
MaterialSTEEL COMP E52100 INNER RING
MaterialSTEEL COMP E52100 OR STEEL COMP E51100 BALL
Bore Diameter0.5000 INCHES NOMINAL IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Overall Outside Diameter1.1250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-001-1938MS27641-20RG INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-016-157946474 INTERCHANGEABLE
Bearing,ball,airframe
Transupport Inc Dba Transupport Inc
3110-00-027-3401MS27640-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-027-4028MS27641-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-027-7423 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-027-8142 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-027-8758MS27641-3 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-030-3381AS27641-4 INTERCHANGEABLE
Bearing,ball,airframe
The Boeing Company Div Defense
3110-00-034-5257MS27641-6 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4472 INTERCHANGEABLE
Bearing,ball,airframe
Cross-Reference Index
Part NumberManufacturer
KP8A Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
MS27641-8 Thales Uk Limited Dba Thales Uk Ltd Training and Simulation (GBR)
KP8AA1488 Timken Co Div the Timken Company (USA)
AS7949 Sae International Dba Sae International (USA)
MS27641-8 PRIMARY Sae International Dba Sae International (USA)
713562 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
AS27641 Society of Automotive Engineers Inc (USA)
MS27641KP8A Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KP8AFS464 Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
MS27641&8A Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27641-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS27641 Sae International Dba Sae International (USA)
MKP8AFS464 Timken Co Div the Timken Company (USA)
AS27641-8 Society of Automotive Engineers Inc (USA)
940.83.08.605 Pilatus Aircraft Ltd (CHE)
KP8AFS464 Timken Co Div the Timken Company (USA)
KP8ANFC Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
AS7949 Society of Automotive Engineers Inc (USA)
121-63852-8 Moog Inc (USA)
MS27641-8 Society of Automotive Engineers Inc (USA)
Related Parts
3110-00-001-1938INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-20RG
3110-00-016-1579INTERCHANGEABLE
BEARING,BALL,AIRFRAME
46474
3110-00-027-3401INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-8
3110-00-027-4028INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-10
3110-00-027-7423INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-027-8142INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-027-8758INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-3
3110-00-030-3381INTERCHANGEABLE
BEARING,BALL,AIRFRAME
AS27641-4
3110-00-034-5257INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-6
3110-00-142-4472INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-554-0029INTERCHANGEABLE
BEARING,BALL,AIRFRAME
KP8A
3110-01-037-1256INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS24641-12G

Frequently Asked Questions

What is NSN 3110-00-042-0440?

NSN 3110-00-042-0440 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 3110-00-042-0440?

NSN 3110-00-042-0440 has 20 cross-referenced part numbers: KP8A (Schatz Bearing Corporation Dba Schatz Bearing Corp), MS27641-8 (Thales Uk Limited Dba Thales Uk Ltd Training and Simulation), KP8AA1488 (Timken Co Div the Timken Company), AS7949 (Sae International Dba Sae International), MS27641-8 (Sae International Dba Sae International) and 15 more.

What NSN replaces 3110-00-042-0440?

There are 12 known substitutes for 3110-00-042-0440: 3110-00-001-1938, 3110-00-016-1579, 3110-00-027-3401 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27641-8?

Key specifications for MS27641-8: Load Direction: RADIAL; Seal Quantity: 2; Outer Ring Width: 0.3130 INCHES NOMINAL IN; Special Features: 80 PCT. FULL OF MIL-G-81322,INTERNAL RADIAL CLEARANCE 0.0004- 0.0010 IN.,HEAT TREAT RINGS AND BALLS TO ROCKWELL C 60 TO 66 AND STABILIZED FOR OPERATION AT 250 DEG. F,RADIAL AND LATERAL ECCENTRICITY INNER RING 0.0010 IN. OUTER RING 0.0016 IN. IN. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-042-0440 still in active supply?

NSN 3110-00-042-0440 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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