1X2121

View detailed technical data, stock status, and sourcing information for: 1X2121
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-100-3129

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).

2.1693 inches nominal cone width, 0.1406 inches nominal cone corner radius, steel overall material, 3.5000 inches nominal bore diameter, afbma class 2 standard tolerance designation

Product Characteristics

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

Bore Diameter: 3.5000 inches nominal
Cone Corner Radius: 0.1406 inches nominal
Cone Width: 2.1693 inches nominal
Standard Tolerance Designation: afbma class 2
Material: steel overall
Style Designator: normal angle

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-172-2454	No Name Available	09/01/1976
3805-00-847-2112	No Name Available	07/06/1972
3110-00-892-0289	No Name Available	11/06/1967
3110-01-299-8146	No Name Available	01/01/1993

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
0051989	Tapered Roller Cone and Rollers
0051989-2	Tapered Roller Cone and Rollers
01113-0364-4 ITEM 5-11	Tapered Roller Cone and Rollers
03-113-0631-4 S/N 13111/131112	Tapered Roller Cone and Rollers
051989	Tapered Roller Cone and Rollers
12364299	Tapered Roller Cone and Rollers
1J4757	Tapered Roller Cone and Rollers
1X2121	Tapered Roller Cone and Rollers
31000-0105	Tapered Roller Cone and Rollers
62A396	Tapered Roller Cone and Rollers
62AX396	Tapered Roller Cone and Rollers
6580-6535W	Tapered Roller Cone and Rollers
7377459	Tapered Roller Cone and Rollers
863007-121	Tapered Roller Cone and Rollers
TM9135	Tapered Roller Cone and Rollers

FAQs

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

What is the FSCG of the NSN 3110-00-100-3129?

The FSCG of the NSN 3110-00-100-3129 is 3110

Does the NSN 3110-00-100-3129 have a Schedule B code assigned?

Yes, the Schedule B code is 8482800080

Does NSN 3110-00-100-3129 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 3110-00-100-3129 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-00-100-3129 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 3110-00-100-3129 was assigned to the Federal Catalog?

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