505-44

View detailed technical data, stock status, and sourcing information for: 505-44
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-227-2813

Item Name Code

00051

Assigment Date

01/01/1963 (63 years ago)

A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

1.2500 inches nominal inner ring width, ground surface finish, 3.5000 inches nominal overall outside diameter, 2.7500 inches nominal bore diameter, 1.0490 inches nominal outer ring 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
Overall Outside Diameter: 3.5000 inches nominal
Outer Ring Width: 1.0490 inches nominal
Inner Ring Width: 1.2500 inches nominal
Surface Finish: ground
Retainer Fabrication Method: pressed
Alignment Type: rigid
Standard Tolerance Designation: afbma std tolerance for industrial needle bearings
Special Features: oil hole and groove in outer and inner rings
Lubrication Material: grease
Lubrication Material Document And Classification: mil-g-3278 mil spec single material response
Material: steel comp e52100 or steel comp 8620 or steel or steel comp e50100 or steel comp e51100 overall
Material Document And Classification: mil-s-7420 mil spec 1st material response or 66 fed std 1st material response or mil-s-8690 mil spec 2nd material response or mil-s-7493 mil spec 3rd material response or qq-s-624 fed spec 3rd material response or qq-s-633 fed spec 3rd material response or 66 fed std 4th material response or 66 fed std 5th material response overall
Surface Treatment: cadmium all external/exposed metal surfaces
Style Designator: cam roller, hardened and ground, non-separable

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-277-0761	No Name Available	05/05/1971

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
170863	Needle Roller Bearing
44NBC2056YZP	Needle Roller Bearing
44NBC2056YZP2C	Needle Roller Bearing
44NBC2056YZPANG2	Needle Roller Bearing
44NBC2056YZPMILG3278A	Needle Roller Bearing
505-44	Needle Roller Bearing
BACB10B120ZP	Needle Roller Bearing
MS24461-44	Needle Roller Bearing
NAS505-44	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-227-2813?

The FSCG of the NSN 3110-00-227-2813 is 3110

Does the NSN 3110-00-227-2813 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-00-227-2813 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 3110-00-227-2813 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-227-2813 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 3110-00-227-2813 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963