21-427-3

Comprehensive specifications and application details for: 21-427-3 Duplex Ball Bearing.

Summary

Explore detailed summary information for bearing: 21-427-3. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
21-427-3
Federal Supply Classification
3110 Unmounted Antifriction Bearings
(NSN) National Stock Number
3110-00-723-9429
Item Name Code
30213
Federal Item Identification Guide
A044A0
Assigment Date
01/01/1961

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

13.0000 inches minimum and 13.0005 inches maximum overall outside diameter, 11.0000 inches minimum and 11.0005 inches maximum bore diameter, angular load direction, mil-l-15719 mil spec single material response lubrication material document and classification, light bearing preload designation

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-00-723-9429 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bearing Preload Designation
light
Bore Diameter
11.0000 inches minimum and 11.0005 inches maximum
Load Direction
angular
Lubrication Material Document And Classification
mil-l-15719 mil spec single material response
Overall Outside Diameter
13.0000 inches minimum and 13.0005 inches maximum
Overall Width
1.9900 inches minimum and 2.0000 inches maximum
Material
unable to decode
Retainer Fabrication Method
machined
Special Features
with inner and outer ring spacer,radial runout assembled 0.0020 in. t.i.r.,axial runout 0.0010 in. r.i.r.,starting torque under radial load of 15000 lb equals 304 in. lb,stating torque under thrust load of 8870 lb equals 240 in. lb,all dimensions apply at 68 deg f,overall dimension 2.6250 in. make the width of inner race spacer such that each bearing of the match pair will be preloaded axiaaly 0.0005 in. when assembled in machine,over 25 deg angularity
Style Designator
counterbored outer rings, non-separable, back to back mounting
Surface Finish
ground
Lubrication Material
unable to decode

Frequently Asked Questions

Find quick answers to common questions about bearing: 21-427-3. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-00-723-9429?
The FSCG of the NSN 3110-00-723-9429 is 3110
Does the NSN 3110-00-723-9429 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105068
Does NSN 3110-00-723-9429 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 3110-00-723-9429 contain precious materials?
Precious metal content is unknown
Does NSN 3110-00-723-9429 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 3110-00-723-9429 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Sun, Jan 1, 1961

Price & Availability

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