KR5-CNGB Self-Aligning Plain Bearing

Comprehensive specifications and application details for: KR5-CNGB Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: KR5-CNGB. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: KR5-CNGB
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-064-6301
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 08/28/1978

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 item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

ams 5630 assn std single material response inner member material document and classification, ams 5643 assn std single material response outer ring material document and classification, 0.3120 inches minimum and 0.3125 inches maximum bore diameter, 0.3730 inches minimum and 0.3750 inches maximum inner member width, steel comp 440c inner member material

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-064-6301 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.3120 inches minimum and 0.3125 inches maximum
Inner Member Width: 0.3730 inches minimum and 0.3750 inches maximum
Material Document And Classification: ams 5630 assn std single material response inner member
Material Document And Classification: ams 5643 assn std single material response outer ring
Material: steel comp 440c inner member
Material: steel comp 630 outer ring
Outer Member Outside Diameter: 0.7495 inches minimum and 0.7500 inches maximum
Outer Member Width: 0.2760 inches minimum and 0.2860 inches maximum
Special Features: 0.6620 in. dia center of staking groove
Static Radial Load Rating: 8750 pounds
Style Designator: with insert and/or liner with staking groove

Replaces

The NSN 3120-01-064-6301 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-159-6946	No Name Available	11/01/1982
3120-00-865-3579	No Name Available	03/01/1995
3120-01-006-9151	No Name Available	01/01/1998

Frequently Asked Questions

Find quick answers to common questions about bearing: KR5-CNGB. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-064-6301?: The FSCG of the NSN 3120-01-064-6301 is 3120

Does the NSN 3120-01-064-6301 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-064-6301 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 3120-01-064-6301 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-064-6301 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 3120-01-064-6301 was assigned to the Federal Catalog?: It was assigned 48 years ago, on Mon, Aug 28, 1978

Price & Availability

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Stock Availability

This product is available in the following quantities and conditions:

New Material	1,271
New Surplus	375
As Removed	1
Serviceable	1
Total	1,648

Availability of this item was last updated on: 11/19/2025 03:11 AM EST. Availability may have changed since then. Request a quote for up to date pricing and availability.