3444-9 ITEM 21

View detailed technical data, stock status, and sourcing information for: 3444-9 ITEM 21
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-149-5259

Item Name Code

22293

Assigment Date

03/22/1983 (43 years ago)

recessed w/ aperture cross-sectional shape style, 6.969 inches minimum and 7.000 inches maximum outside diameter, 0.500 inches nominal recess depth, 0.813 inches nominal minor thickness, 4.500 inches nominal recess diameter

Product Characteristics

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

Cross-Sectional Shape Style: recessed w/ aperture
Outside Diameter: 6.969 inches minimum and 7.000 inches maximum
Minor Thickness: 0.813 inches nominal
Recess Diameter: 4.500 inches nominal
Recess Depth: 0.500 inches nominal
Aperture Diameter: 2.885 inches minimum and 2.889 inches maximum
Mounting Hole Arrangement Style: single bolt hole circle
Bolt Circle Hole Quantity: 8
Overall Thickness: 0.875 inches nominal
Mounting Bolt Circle Diameter: 6.125 inches nominal
Raised Surface Height: 0.438 inches nominal
Thread Quantity Per Inch: 16
Nominal Thread Size: 0.375 inches
Surface Finish: 63.0 microinches aperture
Surface Finish: 63.0 microinches inner face as mounted
Surface Finish: 63.0 microinches raised surface
Mounting Hole Type: round, threaded
Outside Raised Surface Diameter: 3.375 inches nominal
Special Features: circmferential grease groove in aperture surface,0.0625 in. deep,0.125 in. wide,0.375 in. from front face; recess located in raised surface 5.116 in. dia on back face
Material: steel overall
Material Document And Classification: emd 237,fscm 95402 mfr ref single material response overall
Style Designator: round
Thread Series Designator: unc

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
3444-9 ITEM 21	Bearing Retaining Plate
901229-0-04	Bearing Retaining Plate

FAQs

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

What is the FSCG of the NSN 3110-01-149-5259?

The FSCG of the NSN 3110-01-149-5259 is 3110

Does the NSN 3110-01-149-5259 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3110-01-149-5259 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 3110-01-149-5259 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-149-5259 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 3110-01-149-5259 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Tue, Mar 22, 1983