NP21 Ball Bearing Unit

Comprehensive specifications and application details for: NP21 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: NP21. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: NP21
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-102-8956
Item Name Code: 30556
Federal Item Identification Guide: A093A0
Assigment Date: 06/07/1968

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, self-aligning alignment type, 0.8125 inches nominal base thickness, 2.0312 inches nominal assembly overall length, 1.8750 inches nominal base length

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-102-8956 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 2.0312 inches nominal
Base Length: 1.8750 inches nominal
Base Thickness: 0.8125 inches nominal
Block Type: fixed
Bore Diameter: 1.3125 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 4.9375 inches nominal
Features Provided: ground rolling element groove
Height From Bottom Of Base To Bore Centerline: 1.8750 inches nominal
Housing Height: 3.7500 inches nominal
Housing Width: 6.3750 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
Material: iron housing
Mounting Slot Length: 0.8125 inches nominal
Mounting Slot Width: 0.5000 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

Frequently Asked Questions

Find quick answers to common questions about bearing: NP21. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-102-8956?: The FSCG of the NSN 3130-00-102-8956 is 3130

Does the NSN 3130-00-102-8956 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-102-8956 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 3130-00-102-8956 contain precious materials?: Precious metal content is unknown

Does NSN 3130-00-102-8956 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.