MS27640-4 Airframe Ball Bearing
Comprehensive specifications and application details for: MS27640-4 Airframe Ball Bearing.
Summary
Explore detailed summary information for bearing: MS27640-4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.
- Part Number
- MS27640-4
- Federal Supply Classification
- 3110 Unmounted Antifriction Bearings
- (NSN) National Stock Number
- 3110-00-023-6669
- Item Name Code
- 00041
- Federal Item Identification Guide
- A044A0
- Assigment Date
- 01/13/1972
A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes:bearing,ball,annular.
0.4840 inches nominal inner ring width, contact bearing seal type, 0.2500 inches nominal bore diameter, radial load direction, mil-g-81322 mil spec single material response lubrication material document and classification
Datasheet
Below are the comprehensive technical specifications for bearing: 3110-00-023-6669 . Find dimensions, materials, tolerances, performance characteristics, etc.
- Bearing Seal Type
- contact
- Bore Diameter
- 0.2500 inches nominal
- Inner Ring Width
- 0.4840 inches nominal
- Load Direction
- radial
- Lubrication Material Document And Classification
- mil-g-81322 mil spec single material response
- Outer Ring Width
- 0.3350 inches nominal
- Overall Outside Diameter
- 0.9014 inches nominal
- Material Document And Classification
- 66 fed std all material responses ball
- Material Document And Classification
- 66 fed std single material response inner ring
- Material Document And Classification
- 66 fed std single material response outer ring
- Material Document And Classification
- ams 3652 assn std single material response or ams 3666 assn std single material response seal
- Material
- plastic polytetrafluoroethylene seal
- Material
- steel corrosion resisting retainer
- Material
- steel comp e51100 or steel comp e52100 ball
- Material
- steel comp e52100 inner ring
- Material
- steel comp e52100 outer ring
- Special Features
- 80 pct. full of mil-g-81322,internal radial clearance 0.0004 in. min,0.0010 in. max,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. outerring 0.0016 in.
- Seal Quantity
- 2
- Standard Tolerance Designation
- afbma std tolerance for airframe ball bearings
- Style Designator
- single row inner ring extended both sides
- Surface Treatment Document And Classification
- qq-p-416,ty 1,cl 2 fed spec single treatment response exposed surfaces as mounted
- Surface Treatment
- cadmium exposed surfaces as mounted
Replaces
The NSN 3110-00-023-6669 is used in place of the following discontinued or alternate items:
| NSN | Name | Date |
|---|---|---|
| 3110-00-142-4461 | No Name Available | 07/01/1982 |
| 3110-00-142-4501 | No Name Available | 07/20/1973 |
| 3110-01-037-1257 | No Name Available | 07/01/1979 |
| 3110-01-181-1359 | No Name Available | 12/01/1997 |
Frequently Asked Questions
Find quick answers to common questions about bearing: MS27640-4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.
- What is the FSCG of the NSN 3110-00-023-6669?
- The FSCG of the NSN 3110-00-023-6669 is 3110
- Does the NSN 3110-00-023-6669 have a Schedule B code assigned?
- Yes, the Schedule B code is 8482105068
- Does NSN 3110-00-023-6669 require demilitarization?
- Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
- Does NSN 3110-00-023-6669 contain precious materials?
- Item does not contain precious metal.
- Does NSN 3110-00-023-6669 contain hazardous materials?
- Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- When the NSN 3110-00-023-6669 was assigned to the Federal Catalog?
- It was assigned 54 years ago, on Thu, Jan 13, 1972
Price & Availability
Fill out the form to get pricing and availability details for the bearing: MS27640-4
Stock Availability
This product is available in the following quantities and conditions:
| New Material | 3,279 |
| New Surplus | 760 |
| Serviceable | 1 |
| As Removed | 1 |
| Total | 4,041 |
Availability of this item was last updated on:
05/03/2026 08:05 AM EDT.
Availability may have changed since then. Request a quote for up to date pricing and availability.