3KSP4A20
View detailed technical data, stock status, and sourcing information for: 3KSP4A20
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 3KSP4A20 to receive an up to date pricing and availability quote by email.
Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-00-042-4807
Item Name Code
00041
Assigment Date
01/13/1972 (54 years ago)
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.
0.7500 inches nominal overall outside diameter, 0.2500 inches nominal bore diameter, 0.2190 inches nominal outer ring width, 2 seal quantity, 0.2810 inches nominal inner ring width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Bore Diameter
- 0.2500 inches nominal
- Overall Outside Diameter
- 0.7500 inches nominal
- Outer Ring Width
- 0.2190 inches nominal
- Inner Ring Width
- 0.2810 inches nominal
- Seal Quantity
- 2
- Bearing Seal Type
- contact
- Alignment Type
- self-aligning
- Load Direction
- radial
- Self-Alignment Location
- internal
- Standard Tolerance Designation
- afbma std tolerance for airframe ball bearings
- Special Features
- 80 pct. full of mil-g-81322,axial play 0.025 in. max.,heat treat rings and balls to rockwell c 60 to 66 and stabilized for operation at 250 deg.f,8 deg self-aligning in either direction
- Lubrication Material Document And Classification
- mil-g-81322 mil spec single material response
- 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
- 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
- Surface Treatment
- cadmium exposed surfaces as mounted
- Surface Treatment Document And Classification
- qq-p-416,ty 1,cl 2 fed spec single treatment response exposed surfaces as mounted
- Style Designator
- single row self aligning single row inner ring extended both sides
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3110-00-278-7148 | No Name Available | 04/01/1989 |
| 3110-00-684-5302 | No Name Available | 04/01/1986 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 10107325 | Airframe Ball Bearing |
| 1201578-101 | Airframe Ball Bearing |
| 2147249 | Airframe Ball Bearing |
| 2910003 | Airframe Ball Bearing |
| 3103352 | Airframe Ball Bearing |
| 3110PL0670056 | Airframe Ball Bearing |
| 3110PL1601330 | Airframe Ball Bearing |
| 313352 | Airframe Ball Bearing |
| 3KSP4A20 | Airframe Ball Bearing |
| 9408328502 | Airframe Ball Bearing |
| AS27645-4A | Airframe Ball Bearing |
| C697KS4A | Airframe Ball Bearing |
| KS4A | Airframe Ball Bearing |
| KS4AB100B000075K0000J | Airframe Ball Bearing |
| KS4AFS160 | Airframe Ball Bearing |
| KSP4A | Airframe Ball Bearing |
| KSP4AFS464 | Airframe Ball Bearing |
| MS27645-4A | Airframe Ball Bearing |
| SAE AS27645-4A | Airframe Ball Bearing |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3110-00-042-4807?
The FSCG of the NSN 3110-00-042-4807 is 3110
Does the NSN 3110-00-042-4807 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105068
Does NSN 3110-00-042-4807 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 3110-00-042-4807 contain precious materials?
Item does not contain precious metal.
Does NSN 3110-00-042-4807 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 3110-00-042-4807 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Thu, Jan 13, 1972
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
You May Also Like
Browse other in-demand NSN parts sourced by professionals in defense, aerospace, and manufacturing sectors. Each component meets strict standards for quality and performance.
7644-01-648-1502
DPPDD15743137 Digital Geospatial Products
5130-01-561-0550
PH3050 Portable Pneumatic Hammer
5961-00-434-3024
MV2101G Diode Semiconductor Device
6515-01-096-7532
14445A Electrocardiograph Electrode
5935-01-326-7867
MS3406DJ20F7PY Electrical Plug Connector
5935-00-855-2612
MRE50PNV Electrical Receptacle Connector
Pricing
Submit your request below and our team will respond quickly with up-to-date pricing, delivery estimates, and stock information:
In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Material | 912 |
| New Surplus | 77 |
| Serviceable | 1 |
| Overhauled | 1 |
| As Removed | 1 |
| Total | 992 |
Availability of this item was last updated on:
04/02/2026 11:04 PM EDT.
Stock levels and pricing are subject to change.