SF20 Ball Bearing Unit

Comprehensive specifications and application details for: SF20 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: SF20. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: SF20
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-277-0773
Item Name Code: 30556
Federal Item Identification Guide: A093A0
Assigment Date: 01/01/1961

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.

self-aligning alignment type, 1.7500 inches nominal assembly overall length, 1.2500 inches nominal bore diameter, fixed block type, 3.6250 inches nominal bolt circle diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-277-0773 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 1.7500 inches nominal
Block Type: fixed
Bolt Circle Diameter: 3.6250 inches nominal
Bore Diameter: 1.2500 inches nominal
Features Provided: ground rolling element groove
Flange Thickness: 0.5625 inches nominal
Housing Length: 1.3438 inches nominal
Housing Width: 4.6250 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial
Lubrication Material: grease
Lubrication Fitting Angle From Horizontal Centerline: 90.0 degrees nominal
Lubrication Fitting Type: hydraulic
Material: iron cast housing
Material: steel and wool seal
Mounting Hole Diameter: 0.5156 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 3130-00-277-0773 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3130-00-071-9795	No Name Available	01/01/1986
3130-00-327-5129	No Name Available	09/01/1983
3130-00-541-9454	No Name Available	08/01/1969
3130-00-607-2576	No Name Available	03/01/1977

Frequently Asked Questions

Find quick answers to common questions about bearing: SF20. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-277-0773?: The FSCG of the NSN 3130-00-277-0773 is 3130

Does the NSN 3130-00-277-0773 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-277-0773 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 3130-00-277-0773 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-00-277-0773 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.