657D679-008 Sleeve Bearing

Comprehensive specifications and application details for: 657D679-008 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: 657D679-008. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 657D679-008
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-182-8538
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 09/23/1970

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

8.2490 inches minimum and 8.2500 inches maximum body outside diameter, feat criticality code justification, square all corners corner shape, 6.5090 inches minimum and 6.5110 inches maximum body inside diameter, 1 hole antirotation/lubrication type and quantity

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-182-8538 . Find dimensions, materials, tolerances, performance characteristics, etc.

Antirotation/Lubrication Type And Quantity: 1 hole
Body Inside Diameter: 6.5090 inches minimum and 6.5110 inches maximum
Body Outside Diameter: 8.2490 inches minimum and 8.2500 inches maximum
Corner Shape: square all corners
Criticality Code Justification: feat
Hole Diameter: 0.1870 inches nominal first
Overall Length: 5.0000 inches nominal
Material Document And Classification: qq-s-635 fed spec single material response outer layer
Material Document And Classification: qq-t-390 fed spec single material response inner layer
Material: steel comp 1020 outer layer
Material: tin alloy uns l13840 inner layer
Special Features: items are being coded as critical to insure source inspection will be performed at the point of manufacture, prior to material receipt by the us navy or other dod components. these items are piece parts or end items in support of vital military hardware necessary to sustain the successful mission of the ships, submarines, and shore stations of the us navy. critical features including, but not limited to, dimensions, tolerances/clearances, electronic characteristics, and metallurgical properties will bespecified for government q ar (quality assurance representatives) to insure the highest possible degree of quality and reliability of these parts being delivered under navicp contracts
Style Designator: segmented, plain, no outside flanges
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body

Frequently Asked Questions

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What is the FSCG of the NSN 3120-00-182-8538?: The FSCG of the NSN 3120-00-182-8538 is 3120

Does the NSN 3120-00-182-8538 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-00-182-8538 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 3120-00-182-8538 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-182-8538 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.