B544DD

Comprehensive specifications and application details for: B544DD Airframe Ball Bearing.

Summary

Explore detailed summary information for bearing: B544DD. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
B544DD
Federal Supply Classification
3110 Unmounted Antifriction Bearings
(NSN) National Stock Number
3110-01-031-5440
Item Name Code
00041
Federal Item Identification Guide
A044A0
Assigment Date
11/26/1976

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes:bearing,ball,annular.

contact bearing seal type, 0.2760 inches minimum and 0.2810 inches maximum inner ring width, radial load direction, mil-g-81322 mil spec single material response lubrication material document and classification, 1.8115 inches minimum and 1.8135 inches maximum bore diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-01-031-5440 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bearing Seal Type
contact
Bore Diameter
1.8115 inches minimum and 1.8135 inches maximum
Inner Ring Width
0.2760 inches minimum and 0.2810 inches maximum
Load Direction
radial
Lubrication Material Document And Classification
mil-g-81322 mil spec single material response
Lubrication Material
grease
Outer Ring Width
0.2450 inches minimum and 0.2500 inches maximum
Overall Outside Diameter
2.2485 inches minimum and 2.2500 inches maximum
Material Document And Classification
ams 3652 assn std single material response or ams 3666 assn std single material response seal
Material
plastic polytetrafluoroethylene seal
Material
steel comp e51100 or steel comp e52100 ball
Material
steel comp e52100 inner ring
Material
steel comp e52100 outer ring
Seal Quantity
2
Special Features
filled with 80 pct of specified lubricant,radial clearance 0.0008 in. min 0.0018 in. max
Style Designator
single row inner ring extended both sides
Surface Treatment
cadmium all external/exposed metal surfaces

Replaces

The NSN 3110-01-031-5440 is used in place of the following discontinued or alternate items:

NSN Name Date
3110-00-011-9139 No Name Available 07/01/1998
3110-00-839-6359 No Name Available 03/01/1990

Frequently Asked Questions

Find quick answers to common questions about bearing: B544DD. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-01-031-5440?
The FSCG of the NSN 3110-01-031-5440 is 3110
Does the NSN 3110-01-031-5440 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105068
Does NSN 3110-01-031-5440 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 3110-01-031-5440 contain precious materials?
Precious metal content is unknown
Does NSN 3110-01-031-5440 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 3110-01-031-5440 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Fri, Nov 26, 1976

Price & Availability

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