HR-3-1/4-X-6

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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-273-1691

Item Name Code

00040

Assigment Date

02/21/1988 (38 years ago)

A metal or plastic shield located on the face sides of a ball or roller bearing, primarily designed to prevent foreign substances from entering the internal construction of the bearing.

2a thread class, 1.2500 inches nominal thread length, 4.2812 inches nominal overall length, 3.2490 inches minimum and 3.2500 inches maximum overall outside diameter, right-hand thread direction

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 1.2500 inches nominal
Overall Length: 4.2812 inches nominal
Overall Outside Diameter: 3.2490 inches minimum and 3.2500 inches maximum
Stud Diameter: 1.5000 inches minimum and 1.6010 inches maximum
Outer Ring Width: 1.7450 inches minimum and 1.7500 inches maximum
Stud Length: 2.5000 inches nominal
Seal Quantity: 2
Bearing Seal Type: contact
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.500 inches
Special Features: means for relubrication; high capacity stud
Lubrication Material: grease
Lubrication Material Document And Classification: mobil special with mos2,cagec 77988 mfr ref single material response
Material: rubber synthetic seal
Material: steel inner ring
Material: steel outer ring
Material: steel roller
Surface Treatment: oxide all external/exposed metal surfaces
Style Designator: cam follower
Thread Series Designator: unf

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
CFH-3 1/4S	Needle Bearing Cam Follower
E-106696 PART 12	Needle Bearing Cam Follower
HR-3-1/4-X-6	Needle Bearing Cam Follower

FAQs

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

What is the FSCG of the NSN 3110-01-273-1691?

The FSCG of the NSN 3110-01-273-1691 is 3110

Does the NSN 3110-01-273-1691 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-01-273-1691 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 3110-01-273-1691 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-273-1691 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 3110-01-273-1691 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sun, Feb 21, 1988