R257PC91 Sleeve Bushing

Comprehensive specifications and application details for: R257PC91 Sleeve Bushing.

Summary

Explore detailed summary information for bearing: R257PC91. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: R257PC91
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-349-3844
Item Name Code: 13206
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1963

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

0.8140 inches minimum and 0.8150 inches maximum body outside diameter, chamfered inside right corner corner shape, square outside left corner corner shape, 1.1910 inches minimum and 1.1970 inches maximum body inside diameter, square inside left corner corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-349-3844 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 1.1910 inches minimum and 1.1970 inches maximum
Body Outside Diameter: 0.8140 inches minimum and 0.8150 inches maximum
Corner Shape: chamfered inside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square outside right corner
Hardness Rating: 265.0 brinell standard nominal overall
Keyway Dimension: 0.1875 inches nominal internal keyway width
Overall Length: 3.5625 inches nominal
Material: nickel alloy k-500 overall
Special Features: keyway on id 0. 1875 in. long x 0.1875 in.wide x 0.0938 in. deep
Style Designator: solid, plain, no outside flanges
Surface Finish: 125.0 microinches inside diameter surface of body
Surface Finish: 125.0 microinches outside diameter surface of body
Surface Finish: 125.0 microinches right end surface of body
Surface Finish: 16.0 microinches left end surface of body

Frequently Asked Questions

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What is the FSCG of the NSN 3120-00-349-3844?: The FSCG of the NSN 3120-00-349-3844 is 3120

Does the NSN 3120-00-349-3844 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997060

Does NSN 3120-00-349-3844 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 3120-00-349-3844 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-349-3844 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.