51281 Rod End Plain Bearing

Comprehensive specifications and application details for: 51281 Rod End Plain Bearing.

Summary

Explore detailed summary information for bearing: 51281. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 51281
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-407-4375
Item Name Code: 13209
Federal Item Identification Guide: A045A0
Assigment Date: 07/10/1970

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.

0.2495 inches minimum and 0.2515 inches maximum bore diameter, 0.4320 inches minimum and 0.4370 inches maximum inner member width, groove internal outer member lubrication feature, 1.5520 inches minimum and 1.5720 inches maximum bore center to shank end distance, flush lubrication fitting features provided

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-407-4375 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2515 inches maximum
Bore Center To Shank End Distance: 1.5520 inches minimum and 1.5720 inches maximum
Features Provided: flush lubrication fitting
Inner Member Width: 0.4320 inches minimum and 0.4370 inches maximum
Lubrication Feature: groove internal outer member
Overall Length: 1.9530 inches nominal
Material: bronze and aluminum outer layer
Material: steel comp 4130 inside diameter surface of body
Material: steel comp e52100 inner member
Outer Member Outside Diameter: 0.7710 inches minimum and 0.7910 inches maximum
Outer Member Width: 0.3320 inches minimum and 0.3420 inches maximum
Shank Style: externally threaded
Shank Thread Length: 0.9690 inches minimum and 1.0620 inches maximum
Special Features: keyway in shank
Static Radial Load Rating: 4500 pounds
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 Class: 3a
Thread Diameter: 0.3120 inches nominal
Thread Direction: right-hand
Thread Quantity Per Inch: 3
Thread Series Designator: unf

Replaces

The NSN 3120-00-407-4375 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-835-1839	No Name Available	11/01/1983
3120-00-911-6376	No Name Available	03/01/1985

Frequently Asked Questions

Find quick answers to common questions about bearing: 51281. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-407-4375?: The FSCG of the NSN 3120-00-407-4375 is 3120

Does the NSN 3120-00-407-4375 have a Schedule B code assigned?: Yes, the Schedule B code is 8483308055

Does NSN 3120-00-407-4375 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 3120-00-407-4375 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-407-4375 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.