MP31 Ball Bearing Unit

Comprehensive specifications and application details for: MP31 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: MP31. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: MP31
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-227-4274
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.

fixed block type, 0.8750 inches nominal base thickness, self-aligning alignment type, 2.8750 inches nominal base length, 2.8750 inches nominal assembly overall length

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-227-4274 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 2.8750 inches nominal
Base Length: 2.8750 inches nominal
Base Thickness: 0.8750 inches nominal
Block Type: fixed
Bore Diameter: 1.9375 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 6.7500 inches nominal
Features Provided: ground rolling element groove
Height From Bottom Of Base To Bore Centerline: 2.5000 inches nominal
Housing Height: 5.0938 inches nominal
Housing Width: 9.5000 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 Slot Length: 1.4375 inches nominal
Mounting Slot Width: 0.6875 inches nominal
Mounting Hole Type: slotted
Rolling Element Groove Quantity: 1
Rotating Element Locking Method: direct
Seal Location: both ends
Seal Type: labyrinth
Shaft End Type: open
Style Designator: pillow block, solid

Replaces

The NSN 3130-00-227-4274 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3130-00-352-1144	No Name Available	01/01/1963
3130-00-466-2562	No Name Available	09/01/1983

Frequently Asked Questions

Find quick answers to common questions about bearing: MP31. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-227-4274?: The FSCG of the NSN 3130-00-227-4274 is 3130

Does the NSN 3130-00-227-4274 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-227-4274 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 3130-00-227-4274 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-00-227-4274 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.