3120-01-305-7629

Find complete technical information, availability, and procurement data for: 3120-01-305-7629
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-305-7629

Item Name Code

13206

Assigment Date

08/11/1989 (36 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

0.6770 inches minimum and 0.6970 inches maximum flange outside diameter, 0.3125 inches minimum and 0.3140 inches maximum body inside diameter, 0.4381 inches minimum and 0.4386 inches maximum body outside diameter, 0.0570 inches minimum and 0.0620 inches maximum flange width, 0.3020 inches minimum and 0.3170 inches maximum overall length

Product Characteristics

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

Overall Length: 0.3020 inches minimum and 0.3170 inches maximum
Body Outside Diameter: 0.4381 inches minimum and 0.4386 inches maximum
Body Inside Diameter: 0.3125 inches minimum and 0.3140 inches maximum
Flange Outside Diameter: 0.6770 inches minimum and 0.6970 inches maximum
Flange Width: 0.0570 inches minimum and 0.0620 inches maximum
Corner Shape: chamfered inside right corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square outside right corner
Corner Shape: undercut left flange body corner
Hardness Rating: 26.0 rockwell c minimum and 33.0 rockwell c maximum overall
Surface Finish: 100.0 microinches overall
Material: steel comp 4130 or steel comp 8630 overall
Material Document And Classification: mil-s-6758 mil spec 1st material response or mil-t-6736 mil spec 1st material response or mil-s-6050 mil spec 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall
Style Designator: solid, external flange one end
Specification/Standard Data: 78286-ss4091 manufacturers standard

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
SS4091-5-25	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-305-7629?

The FSCG of the NSN 3120-01-305-7629 is 3120

Does the NSN 3120-01-305-7629 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-305-7629 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 3120-01-305-7629 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-305-7629 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 3120-01-305-7629 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Aug 11, 1989