Spherical Plain Bearing
P31721
(NSN) National Stock Number
3120-01-221-3078
Federal Supply Classification
3120 Unmounted Plain Bearings
Item Name Code
13204
Schedule B Code
8482300040
Summary
0.3410 inches minimum and 0.3430 inches maximum overall length, 0.2495 inches minimum and 0.2500 inches maximum body inside diameter, lubricant, dry film lubrication material, 0.4997 inches minimum and 0.5000 inches maximum spherical body diameter, chamfered all corners corner shape, 37.0 rockwell c minimum overall hardness rating
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| A | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | KZ |
Identification
A detachable part in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. It may be divided into two or more segments of 180 degrees (3.141 radians) or less. The item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. Excludes:bearing, plain, self-aligning.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 13204 | A045A0 | - | 1 |
Specifications
Overall Length
0.3410 inches minimum and 0.3430 inches maximum
Details
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.Body Inside Diameter
0.2495 inches minimum and 0.2500 inches maximum
Details
The length of a straight line which passes through the center of a body,and terminates at the inside circumference.Lubrication Material
lubricant, dry film
Details
The element compound or mixture with which the item is lubricated. please use mrc lbma as a replacement for canceled mrc.Spherical Body Diameter
0.4997 inches minimum and 0.5000 inches maximum
Details
None.Corner Shape
chamfered all corners
Details
The physical configuration of the corner.Hardness Rating
37.0 rockwell c minimum overall
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Surface Finish
16.0 microinches spherical surface63.0 microinches right end surface
Details
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.Surface Finish
32.0 microinches inside diameter surface of body
Details
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.Surface Finish
63.0 microinches left end surface
Details
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.Surface Finish
63.0 microinches right end surface63.0 microinches left end surface
Details
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.Special Features
lubricant e/m 967 per ps010,fscm 57606
Details
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.Material
cobalt comp 6 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
ams 5387 assn std single material response overall
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Style Designator
solid
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Test Data Document
81349-mil-i-6866 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.). and 57606-ps012 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.).
Details
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 58890 | - | P | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 742 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
- 100% Product Inspection
- 7 Year Sales Record Retention
- Fast On-Time Delivery
- HAZMAT Certified
- Global Shipping
Manufacturer
REXNORD INDUSTRIES, LLC DBA PSI BEARINGS DIV PSI BEARINGS
CAGE: 57606
SIMI VALLEY
, CA
, 93065-1661
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 3120-01-221-3078
What is the NIIN of the NSN 3120-01-221-3078?
The National Item Identification Number (NIIN) of the NSN 3120-01-221-3078 is 01-221-3078
When the NSN 3120-01-221-3078 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Tue, Nov 26, 1985
Does the NSN 3120-01-221-3078 contain any precious metals?
Does not contain precious metal
Does the NSN 3120-01-221-3078 contain any hazardous material?
No data in HMIRS
Can't Find It
If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.