PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27641-20RGBearing,ball,airframe

Sae International Dba Sae International · NSN 3110-00-001-1938 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-001-1938 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-001-1938. Primary manufacturer part number: MS27641-20RG.
Features
  • Bearing,ball,airframe — FSC 3110
  • Overall Outside Diameter: 2.2496 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
  • Outer Ring Width: 0.4330 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
  • Bearing Seal Type: CONTACT
  • Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
  • Seal Quantity: 2
  • Inner Ring Width: 0.4997 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
  • Load Direction: RADIAL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Rubber Synthetic Seal construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-001-1938, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN3110-00-001-1938
Primary Part NumberMS27641-20RG
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Overall Outside Diameter2.2496 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
Outer Ring Width0.4330 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
Bearing Seal TypeCONTACT
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Seal Quantity2
Inner Ring Width0.4997 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Load DirectionRADIAL
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE BALL
MaterialSTEEL COMP E52100 BALL
MaterialSTEEL COMP E52100 INNER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE RETAINER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 RETAINER
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
Bore Diameter1.2497 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
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
3110-00-042-0440MS27641-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-01-037-1256MS24641-12G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3120-01-111-1099350587-1 INTERCHANGEABLE
Bushing,sleeve
Lockheed Martin Corp
3110-01-123-2323MS27641-5R INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
AS27641 Sae International Dba Sae International (USA)
MKP20A Timken Co Div the Timken Company (USA)
AS27641 Society of Automotive Engineers Inc (USA)
MKP20AFS160 Timken Co Div the Timken Company (USA)
MKP20AFS160 Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
MS27641-20RG PRIMARY Sae International Dba Sae International (USA)
MS27641-20RG Society of Automotive Engineers Inc (USA)
Related Parts
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
3110-00-042-0440INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-8
3110-01-037-1256INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS24641-12G
3120-01-111-1099INTERCHANGEABLE
BUSHING,SLEEVE
350587-1
3110-01-123-2323INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-5R
3110-01-123-2324INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-4R
3110-01-339-8191INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-10G

Frequently Asked Questions

What is NSN 3110-00-001-1938?

NSN 3110-00-001-1938 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-001-1938?

NSN 3110-00-001-1938 has 7 cross-referenced part numbers: AS27641 (Sae International Dba Sae International), MKP20A (Timken Co Div the Timken Company), AS27641 (Society of Automotive Engineers Inc), MKP20AFS160 (Timken Co Div the Timken Company), MKP20AFS160 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings) and 2 more.

What NSN replaces 3110-00-001-1938?

There are 12 known substitutes for 3110-00-001-1938: 3110-00-027-4028, 3110-00-027-7423, 3110-00-027-8142 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27641-20RG?

Key specifications for MS27641-20RG: Overall Outside Diameter: 2.2496 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN; Outer Ring Width: 0.4330 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN; Bearing Seal Type: CONTACT; Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE. 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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