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3120-00-039-5251

Find complete technical information, availability, and procurement data for: 3120-00-039-5251

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3120-00-039-5251
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-00-039-5251
Item Name Code
13211
Assigment Date
11/10/1972 (53 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

1.2620 inches minimum and 1.2640 inches maximum outside diameter, round center hole shape style, rectangular cross-sectional shape style, 1.0430 inches minimum and 1.0450 inches maximum diameter, 0.2290 inches minimum and 0.2310 inches maximum overall thickness

Product Characteristics

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

Cross-Sectional Shape Style
rectangular
Outside Diameter
1.2620 inches minimum and 1.2640 inches maximum
Center Hole Shape Style
round
Diameter
1.0430 inches minimum and 1.0450 inches maximum
Overall Thickness
0.2290 inches minimum and 0.2310 inches maximum
Corner Shape
square all corners
Surface Finish
32.0 microinches overall
Material
copper alloy overall
Style Designator
round

FAQs

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

What is the FSCG of the NSN 3120-00-039-5251?
The FSCG of the NSN 3120-00-039-5251 is 3120
Does the NSN 3120-00-039-5251 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105008
Does NSN 3120-00-039-5251 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 3120-00-039-5251 contain precious materials?
Precious metal content is unknown
Does NSN 3120-00-039-5251 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 3120-00-039-5251 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Fri, Nov 10, 1972

Professional Distribution

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