21-025-29 Sleeve Bushing

Comprehensive specifications and application details for: 21-025-29 Sleeve Bushing.

Summary

Explore detailed summary information for bearing: 21-025-29. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 21-025-29
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-048-2668
Item Name Code: 13206
Federal Item Identification Guide: A045A0
Assigment Date: 09/22/1977

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.

chamfered inside left corner corner shape, 0.2497 inches minimum and 0.2502 inches maximum body inside diameter, square outside left corner corner shape, 0.3740 inches minimum and 0.3745 inches maximum body outside diameter, chamfered inside right corner corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-048-2668 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 0.2497 inches minimum and 0.2502 inches maximum
Body Outside Diameter: 0.3740 inches minimum and 0.3745 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: chamfered inside right corner
Corner Shape: square outside left corner
Corner Shape: square outside right corner
Overall Length: 0.4501 inches minimum and 0.4561 inches maximum
Material: steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 4130 overall
Style Designator: solid, plain, no outside flanges
Surface Finish: 125.0 microinches left end surface of body
Surface Finish: 125.0 microinches right end surface of body
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 32.0 microinches outside diameter surface of body
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec single treatment response overall
Surface Treatment: cadmium overall

Frequently Asked Questions

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What is the FSCG of the NSN 3120-01-048-2668?: The FSCG of the NSN 3120-01-048-2668 is 3120

Does the NSN 3120-01-048-2668 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997060

Does NSN 3120-01-048-2668 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 3120-01-048-2668 contain precious materials?: Precious metal content is unknown

Does NSN 3120-01-048-2668 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.