SP28

View detailed technical data, stock status, and sourcing information for: SP28
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Federal Supply Group

Bearings

Federal Supply Classification

3130 Mounted Bearings

National Stock Number

3130-00-227-4063

Item Name Code

30556

Assigment Date

01/01/1963 (63 years ago)

6.5000 inches nominal center to center distance between mounting holes along width, 1.2500 inches nominal mounting slot length, 0.7500 inches nominal base thickness, 0.7500 inches nominal mounting slot width, 1.7500 inches nominal bore diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Mounting Slot Width: 0.7500 inches nominal
Mounting Slot Length: 1.2500 inches nominal
Bore Diameter: 1.7500 inches nominal
Base Thickness: 0.7500 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 6.5000 inches nominal
Housing Height: 4.6250 inches nominal
Housing Width: 8.7500 inches nominal
Lubrication Fitting Type: hydraulic
Base Length: 2.3750 inches nominal
Rolling Element Groove Quantity: 1
Alignment Type: self-aligning
Internal Fit-Up Designation: standard
Assembly Overall Length: 2.3750 inches nominal
Seal Type: labyrinth
Block Type: fixed
Shaft End Type: open
Seal Location: both ends
Load Capability Type: radial
Height From Bottom Of Base To Bore Centerline: 2.3750 inches nominal
Features Provided: ground rolling element groove
Lubrication Fitting Angle From Horizontal Centerline: 90.0 degrees nominal
Rotating Element Locking Method: direct
Mounting Hole Type: slotted
Lubrication Material: grease
Material: iron cast housing
Material: steel seal
Style Designator: pillow block, solid

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
71694-3-8	Ball Bearing Unit
SP-28	Ball Bearing Unit
SP28	Ball Bearing Unit

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3130-00-227-4063?

The FSCG of the NSN 3130-00-227-4063 is 3130

Does the NSN 3130-00-227-4063 have a Schedule B code assigned?

Yes, the Schedule B code is 8482991050

Does NSN 3130-00-227-4063 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 3130-00-227-4063 contain precious materials?

Item does not contain precious metal.

Does NSN 3130-00-227-4063 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 3130-00-227-4063 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963