Self-Aligning Plain Bearing

ST4M123-12

(NSN) National Stock Number

3120-00-279-4131

Federal Supply Classification

3120 Unmounted Plain Bearings

Item Name Code

13208

Schedule B Code

8482300040

Summary

0.7495 inches minimum and 0.7500 inches maximum bore diameter, lubricant, solid film, mil-l-8937 lubrication material, 1.4370 inches minimum and 1.4375 inches maximum outer member outside diameter, 0.5880 inches minimum and 0.5930 inches maximum outer member width, 0.7450 inches minimum and 0.7500 inches maximum inner member width, 50000 pounds static radial load rating

DAC	HCC	DMIL	RNCC
1	-	-	1

RNVC	SADC	MSDS	RNAAC
2	-	-	SB

Identification

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.

INC	FIIG	Concept	Condition
13208	A045A0	-	1

Specifications

Bore Diameter

0.7495 inches minimum and 0.7500 inches maximum

Details

The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

Lubrication Material

lubricant, solid film, mil-l-8937

Details

The element compound or mixture with which the item is lubricated. please use mrc lbma as a replacement for canceled mrc.

Outer Member Outside Diameter

1.4370 inches minimum and 1.4375 inches maximum

Details

None.

Outer Member Width

0.5880 inches minimum and 0.5930 inches maximum

Details

None.

Inner Member Width

0.7450 inches minimum and 0.7500 inches maximum

Details

None.

Static Radial Load Rating

50000 pounds

Details

The limiting radial load which the item can carry at rest without permanent deformation of the stressed surface or the danger of fracture.

Hardness Rating

28.0 rockwell c nominal inner member

Details

A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

Hardness Rating

36.0 rockwell c minimum and 37.0 rockwell c maximum outer race member

Details

A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

Material

copper alloy 172 or copper alloy 173 inner member

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material

steel comp 630 outer race member

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Style Designator

without insert or liner with staking groove

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
KSB12-27	97613	5	-	5	1	-	SB
ST4M123-12	97613	1	-	3	2	-	ZZ
BSSN12-2025	81376	5	-	5	1	-	SB
ST4M123-12	81376	1	-	3	2	-	ZZ
55826-12	09455	5	-	5	1	-	SB
ST4M123-12	09455	1	-	3	2	-	ZZ
SBU24RZH46-2A	3NPS1	5	-	3	2	-	ZZ
SBU24RZH46-4A	3NPS1	5	-	3	2	-	ZZ
ASBB12V	15860	5	-	5	1	-	SB
ST4M123-12	15860	1	-	3	2	-	ZZ
SBU24RZH46-2A	21335	5	-	5	9	-	SB
SBU24RZH46-4A	21335	4	-	5	9	-	KZ
ST4M123-12	21335	1	-	3	2	-	ZZ
BNG12H-123	16746	5	-	5	1	-	KZ
ST4M123-12	16746	1	-	3	2	-	ZZ

Material and Special Handling

Hazardous material, precious metals, criticality, and electrostatic discharge indicators.

HMIC	PMIC	ESD/EMI	Criticality
N	U	-	-

Freight

Universal / National Freight and Handling Information

UFC	HMC	LTL	LCL
58860	-	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.

ISO9001 / AS9100 Quality Standards
HAZMAT Certified
On Time Delivery
Qualified Sales Team
Counterfeit Parts Prevention
100% Product Inspections

Manufacturer

THE BOEING COMPANY DIV DEFENSE

CAGE: 76301

SAINT LOUIS , MO , 63134-1939

UNITED STATES

View Products

FAQs

Frequently asked questions for NSN 3120-00-279-4131

What is the NIIN of the NSN 3120-00-279-4131?

The National Item Identification Number (NIIN) of the NSN 3120-00-279-4131 is 00-279-4131

When the NSN 3120-00-279-4131 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sun, Aug 19, 1973

Does the NSN 3120-00-279-4131 contain any precious metals?

Type/content is unknown

Does the NSN 3120-00-279-4131 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.