4T 3/4 Ball Bearing Unit

Comprehensive specifications and application details for: 4T 3/4 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: 4T 3/4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 4T 3/4
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-555-6579
Item Name Code: 30556
Federal Item Identification Guide: A093A0
Assigment Date: 01/01/1963

An assembled unit, composed of a housing incorporating a single or multiple row ball bearing(s), designed to meet various or specific conditions of mounting.

3.5312 inches nominal bolt circle diameter, 1.2812 inches nominal assembly overall length, 0.7500 inches nominal bore diameter, fixed block type, self-aligning alignment type

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-555-6579 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 1.2812 inches nominal
Block Type: fixed
Bolt Circle Diameter: 3.5312 inches nominal
Bore Diameter: 0.7500 inches nominal
Features Provided: ground rolling element groove
Flange Thickness: 0.4375 inches nominal
Housing Diameter: 2.3750 inches nominal
Housing Length: 0.9375 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial
Lubrication Material: grease
Lubrication Fitting Angle From Horizontal Centerline: 45.0 degrees nominal
Lubrication Fitting Type: hydraulic
Overall Outside Diameter: 4.4062 inches nominal
Material: iron cast housing
Material: steel and wool seal
Mounting Hole Diameter: 0.3906 inches nominal
Mounting Hole Type: round, unthreaded
Rolling Element Groove Quantity: 1
Rotating Element Locking Method: direct
Seal Location: both ends
Seal Type: labyrinth
Shaft End Type: open
Style Designator: flange block

Replaces

The NSN 3130-00-555-6579 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3130-00-903-3660	No Name Available	03/01/1995

Frequently Asked Questions

Find quick answers to common questions about bearing: 4T 3/4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-555-6579?: The FSCG of the NSN 3130-00-555-6579 is 3130

Does the NSN 3130-00-555-6579 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-555-6579 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 3130-00-555-6579 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-00-555-6579 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.