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3120-00-672-7503

Find complete technical information, availability, and procurement data for: 3120-00-672-7503

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3120-00-672-7503
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-00-672-7503
Item Name Code
13205
Assigment Date
01/01/1963 (63 years ago)

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

7.3750 inches nominal overall length, 2.7500 inches minimum and 2.7510 inches maximum body inside diameter, 0.9688 inches nominal flange width, grooved open both ends lubricant accommodation style, 3.4980 inches minimum and 3.5000 inches maximum body outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length
7.3750 inches nominal
Body Outside Diameter
3.4980 inches minimum and 3.5000 inches maximum
Body Inside Diameter
2.7500 inches minimum and 2.7510 inches maximum
Flange Width
0.9688 inches nominal
Lubricant Accommodation Style
grooved open both ends
End To Flange Distance
3.1250 inches nominal
Corner Shape
square left flange body corner
Corner Shape
square left flange outside right corner
Corner Shape
square outside left corner
Corner Shape
square inside left corner
Corner Shape
square inside right corner
Corner Shape
square outside right corner
Corner Shape
square right flange body corner
Corner Shape
square right flange outside left corner
Surface Finish
125.0 microinches outside diameter surface of body
Surface Finish
125.0 microinches outside diameter surface of flange
Surface Finish
125.0 microinches left end surface of body
Surface Finish
125.0 microinches left end surface of flange
Surface Finish
125.0 microinches right end surface of body
Surface Finish
125.0 microinches right end surface of flange
Surface Finish
63.0 microinches inside diameter surface of body
Surface Groove Location And Quantity
1 internal
Special Features
2.0312 in. radius of flange on upper half of both segments,1.8594 in. radius of flange on lower half of both segments,upper half of center flange outside left corner undercut 0.1250 in. w by 0.1718 in.,style 69 internal groove in lower half of half a
Material
copper alloy 937 overall
Style Designator
segmented, external flange

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FAQs

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

What is the FSCG of the NSN 3120-00-672-7503?
The FSCG of the NSN 3120-00-672-7503 is 3120
Does the NSN 3120-00-672-7503 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-00-672-7503 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 3120-00-672-7503 contain precious materials?
Precious metal content is unknown
Does NSN 3120-00-672-7503 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 3120-00-672-7503 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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