31J208PC5-6
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Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-00-343-1931
Item Name Code
13205
Assigment Date
01/01/1963 (63 years ago)
3.2500 inches nominal overall length, 0.5000 inches nominal first hole diameter, 0.2500 inches nominal fourth hole diameter, 0.3750 inches nominal second hole diameter, 0.2500 inches nominal third hole diameter
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Hole Diameter
- 0.2500 inches nominal fourth
- Hole Diameter
- 0.2500 inches nominal third
- Hole Diameter
- 0.3750 inches nominal second
- Hole Diameter
- 0.5000 inches nominal first
- Overall Length
- 3.2500 inches nominal
- Body Outside Diameter
- 3.0005 inches minimum and 3.0010 inches maximum
- Body Inside Diameter
- 2.2540 inches minimum and 2.2560 inches maximum
- Flange Outside Diameter
- 3.1250 inches nominal
- Flange Width
- 0.4990 inches minimum and 0.5000 inches maximum
- Lubricant Accommodation Style
- grooved single x
- Corner Shape
- chamfered outside right corner
- Corner Shape
- round inside left corner
- Corner Shape
- square left flange outside right corner
- Corner Shape
- square outside left corner
- Corner Shape
- square inside right corner
- Corner Shape
- undercut left flange body corner
- Antirotation/Lubrication Type And Quantity
- 4 hole
- Special Features
- 2 circumferential grooves on inside diameter; first groove 0.250 in. from left end surface of body and flange,0.250 in. wide,0.0469 in. deep; second groove 0.1875 in. from right end surface of body,0.250 in. wide,0.0469 in. deep
- Material
- steel outer layer
- Material
- tin alloy inner layer
- Material Document And Classification
- 46-m-2 babbitt,fscm 75900 mfr ref single material response inner layer
- Material Document And Classification
- 46-s-17 class b,fscm 75900 mfr ref single material response outer layer
- Style Designator
- solid, external flange one end
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 3120-00-343-1939 | No Name Available | 04/01/1976 |
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FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 3120-00-343-1931?
The FSCG of the NSN 3120-00-343-1931 is 3120
Does the NSN 3120-00-343-1931 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-00-343-1931 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 3120-00-343-1931 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-00-343-1931 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 3120-00-343-1931 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963
Professional Distribution
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