A51H20559-1

View detailed technical data, stock status, and sourcing information for: A51H20559-1
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-008-7805

Item Name Code

13209

Assigment Date

07/23/1972 (54 years ago)

A detachable assembly 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. The outer member of the assembly is modified to provide a shank. The inner member may be either a plain spherical bearing or a sleeve bearing. Excludes:bearing, plain, spherical and bearing, plain, self-aligning.

right-hand thread direction, 1.9220 inches nominal overall length, internally threaded shank style, 3b thread class, 0.2495 inches minimum and 0.2500 inches maximum bore diameter

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Shank Style: internally threaded
Overall Length: 1.9220 inches nominal
Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Outer Member Outside Diameter: 0.8440 inches nominal
Bore Center To Shank End Distance: 1.5000 inches nominal
Outer Member Width: 0.2450 inches minimum and 0.2550 inches maximum
Inner Member Width: 0.3410 inches minimum and 0.3430 inches maximum
Shank Thread Length: 0.5000 inches nominal
Thread Diameter: 0.312 inches nominal
Thread Quantity Per Inch: 24
Special Features: slot in shank 0.0670 in. wide 0.1210 in. deep
Style Designator: ball type
Test Data Document: "81349-mil-i-6868 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.)."
Thread Series Designator: unjf

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
A51H20559	Rod End Plain Bearing
A51H20559-1	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-008-7805?

The FSCG of the NSN 3120-00-008-7805 is 3120

Does the NSN 3120-00-008-7805 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-00-008-7805 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 3120-00-008-7805 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-008-7805 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 3120-00-008-7805 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, Jul 23, 1972