2X531

View detailed technical data, stock status, and sourcing information for: 2X531
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Federal Supply Group

Bearings

Federal Supply Classification

3130 Mounted Bearings

National Stock Number

3130-01-051-9700

Item Name Code

30557

Assigment Date

12/08/1977 (48 years ago)

A cylindrically-shaped metal item, usually tubular, designed to form a pivoting connection between the piston and connecting rod of an internal combustion engine, compressor and like items. May include oil sealing or pin retaining plugs. Excludes:bushing, sleeve; pin, grooved, headless; pin, straight, headless; and pin, hollow.

1.0000 inches nominal bore diameter, 0.4062 inches nominal base thickness, 3.0000 inches nominal center to center distance between mounting holes along width, 0.4375 inches nominal mounting hole diameter, 2.1680 inches nominal housing height

Product Characteristics

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

Mounting Hole Diameter: 0.4375 inches nominal
Bore Diameter: 1.0000 inches nominal
Base Thickness: 0.4062 inches nominal
Center To Center Distance Between Mounting Holes Along Width: 3.0000 inches nominal
Housing Height: 2.1680 inches nominal
Housing Length: 0.9375 inches nominal
Housing Width: 4.0000 inches nominal
Lubrication Fitting Type: cup
Base Length: 1.1250 inches nominal
Alignment Type: self-aligning
Shaft End Type: open
Load Capability Type: thrust
Thrust Bearing Surface Location: one end
Height From Bottom Of Base To Bore Centerline: 1.0938 inches nominal
Features Provided: removable liner
Lubrication Fitting Angle From Horizontal Centerline: 90.0 degrees nominal
Special Features: with grommets
Lubrication Material: oil
Material: rubber synthetic inner liner
Material: steel housing
Style Designator: pillow block, separable with innerliner

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
2X531	Plain Bearing Unit

FAQs

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

What is the FSCG of the NSN 3130-01-051-9700?

The FSCG of the NSN 3130-01-051-9700 is 3130

Does the NSN 3130-01-051-9700 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3130-01-051-9700 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 3130-01-051-9700 contain precious materials?

Item does not contain precious metal.

Does NSN 3130-01-051-9700 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 3130-01-051-9700 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Dec 8, 1977