03-825-20E-017P

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03-825-20E-017P
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-01-347-9978
Item Name Code
13208
Assigment Date
11/03/1991 (34 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.

1.0910 inches minimum and 1.0930 inches maximum inner member width, 108000 pounds static radial load rating, 1.9995 inches minimum and 2.0000 inches maximum outer member outside diameter, 1.2495 inches minimum and 1.2500 inches maximum bore diameter, 0.9370 inches minimum and 0.9470 inches maximum outer member width

Product Characteristics

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

Bore Diameter
1.2495 inches minimum and 1.2500 inches maximum
Outer Member Outside Diameter
1.9995 inches minimum and 2.0000 inches maximum
Outer Member Width
0.9370 inches minimum and 0.9470 inches maximum
Inner Member Width
1.0910 inches minimum and 1.0930 inches maximum
Static Radial Load Rating
108000 pounds
Hardness Rating
55.0 rockwell c minimum inner member
Hardness Rating
28.0 rockwell c minimum outer race member
Material
plastic polytetrafluoroethylene race liner
Material
steel comp 440c inner member
Material
steel comp 630 outer race member
Material Document And Classification
ams 5630 assn std single material response inner member
Material Document And Classification
ams 5643 assn std single material response outer race member
Material Document And Classification
karon,cagec 50632 mfr ref single material response race liner
Style Designator
with insert and/or liner with staking groove

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
03-825-20E-017P Self-Aligning Plain Bearing
04A064-20P Self-Aligning Plain Bearing
KNDB20-21P Self-Aligning Plain Bearing
KR20-CNGBP Self-Aligning Plain Bearing
KSB20-4(L1)P Self-Aligning Plain Bearing
KSB20-4D Self-Aligning Plain Bearing
SWKN-20-400P Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-347-9978?
The FSCG of the NSN 3120-01-347-9978 is 3120
Does the NSN 3120-01-347-9978 have a Schedule B code assigned?
Yes, the Schedule B code is 8482300040
Does NSN 3120-01-347-9978 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 3120-01-347-9978 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-347-9978 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 3120-01-347-9978 was assigned to the Federal Catalog?
It was assigned 34 years ago, on Sun, Nov 3, 1991

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