NP-28 Ball Bearing Unit

Comprehensive specifications and application details for: NP-28 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: NP-28. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: NP-28
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-116-9044
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.

2.2344 inches nominal assembly overall length, 0.8125 inches nominal base thickness, 2.0000 inches nominal base length, self-aligning alignment type, fixed block type

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-116-9044 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 2.2344 inches nominal
Base Length: 2.0000 inches nominal
Base Thickness: 0.8125 inches nominal
Block Type: fixed
Bore Diameter: 1.7500 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 5.6250 inches nominal
Features Provided: ground rolling element groove
Height From Bottom Of Base To Bore Centerline: 2.1250 inches nominal
Housing Height: 4.3125 inches nominal
Housing Width: 7.2500 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 cast housing
Material: steel and wool seal
Mounting Slot Length: 0.8312 inches nominal
Mounting Slot Width: 0.5312 inches nominal
Mounting Hole Type: slotted
Rolling Element Groove Quantity: 1
Rotating Element Locking Method: direct
Seal Location: both ends
Seal Type: contact
Shaft End Type: open
Style Designator: pillow block, solid

Replaces

The NSN 3130-00-116-9044 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3130-00-108-0690	No Name Available	09/01/1983
3130-00-837-0382	No Name Available	03/01/1977
3110-00-978-2287	No Name Available	08/09/1991
3130-01-094-2074	No Name Available	03/01/1982

Frequently Asked Questions

Find quick answers to common questions about bearing: NP-28. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-116-9044?: The FSCG of the NSN 3130-00-116-9044 is 3130

Does the NSN 3130-00-116-9044 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-116-9044 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 3130-00-116-9044 contain precious materials?: Precious metal content is unknown

Does NSN 3130-00-116-9044 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.