1-991 Ball Bearing Unit

Comprehensive specifications and application details for: 1-991 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: 1-991. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 1-991
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-159-1485
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.

3.1250 inches nominal base length, 0.8125 inches nominal base thickness, 4.0000 inches nominal assembly overall length, self-aligning alignment type, floating block type

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-159-1485 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 4.0000 inches nominal
Base Length: 3.1250 inches nominal
Base Thickness: 0.8125 inches nominal
Block Type: floating
Bore Diameter: 2.1875 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 9.0000 inches nominal
Collar Location: one end
Features Provided: ground rolling element groove
Height From Bottom Of Base To Bore Centerline: 3.1250 inches nominal
Housing Height: 5.6875 inches nominal
Housing Width: 11.3750 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial
Lubrication Fitting Angle From Horizontal Centerline: 90.0 degrees nominal
Lubrication Fitting Type: pipe plug
Material: iron cast housing
Material: steel seal
Mounting Slot Length: 1.0000 inches nominal
Mounting Slot Width: 0.7500 inches nominal
Mounting Hole Type: slotted
Rolling Element Groove Quantity: 1
Rotating Element Locking Method: setscrew locking collar
Seal Location: one end
Seal Type: labyrinth
Shaft End Type: open
Style Designator: pillow block, solid

Frequently Asked Questions

Find quick answers to common questions about bearing: 1-991. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-159-1485?: The FSCG of the NSN 3130-00-159-1485 is 3130

Does the NSN 3130-00-159-1485 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-159-1485 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 3130-00-159-1485 contain precious materials?: Precious metal content is unknown

Does NSN 3130-00-159-1485 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.