1B3921

View detailed technical data, stock status, and sourcing information for: 1B3921
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-100-0285

Item Name Code

00023

Assigment Date

01/01/1961 (65 years ago)

An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).

steel overall material, 0.1410 inches nominal cone corner radius, 2.7500 inches nominal bore diameter, afbma class 2 standard tolerance designation, 1.4240 inches nominal cone width

Product Characteristics

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

Bore Diameter: 2.7500 inches nominal
Cone Corner Radius: 0.1410 inches nominal
Cone Width: 1.4240 inches nominal
Standard Tolerance Designation: afbma class 2
Material: steel overall
Style Designator: normal angle

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
13277DC	Tapered Roller Cone and Rollers
181-44	Tapered Roller Cone and Rollers
1B3921	Tapered Roller Cone and Rollers
425074	Tapered Roller Cone and Rollers
4251104	Tapered Roller Cone and Rollers
4B0157	Tapered Roller Cone and Rollers
4UG0141	Tapered Roller Cone and Rollers
5P1003	Tapered Roller Cone and Rollers
62AX182	Tapered Roller Cone and Rollers
711367	Tapered Roller Cone and Rollers
B5432	Tapered Roller Cone and Rollers
K566	Tapered Roller Cone and Rollers
MA1610	Tapered Roller Cone and Rollers
SFP2018	Tapered Roller Cone and Rollers
T697	Tapered Roller Cone and Rollers

FAQs

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

What is the FSCG of the NSN 3110-00-100-0285?

The FSCG of the NSN 3110-00-100-0285 is 3110

Does the NSN 3110-00-100-0285 have a Schedule B code assigned?

Yes, the Schedule B code is 8482800080

Does NSN 3110-00-100-0285 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 3110-00-100-0285 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-100-0285 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 3110-00-100-0285 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961