Self-aligning Plain Bearing

NSN: 3120-01-133-7939 | Model: ST4M218

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.

NSN Properties and Flags

NATO Stock Number

3120-01-133-7939

DEMIL

Bore Diameter

Between 1.9020 inches and 1.9025 inches

Outer Member Outside Diameter

Between 2.6540 inches and 2.6550 inches

Outer Member Width

Between 1.1200 inches and 1.1300 inches

Inner Member Width

Between 1.1700 inches and 1.1750 inches

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE4A516TY785	2016-05-02	DRM00	20 EA
SPE4A615THS22	2015-08-21	PARAV	32 EA

Inventory Check

The last inventory check on this NSN was done on 05/21/2024. Due to rapid changes in inventory this may not be the current stock qty.

New: 16

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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ISO 9001:2015 + AS9120B
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HAZMAT Certified
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NSN 3120-01-133-7939 Datasheet

Supply Class (FSC):

Unmounted Plain Bearings

Cross Reference:

ST4M218
KSAD30-13
ADSB30-303
03-823-30E-001
ST4M218M30A
ST4M218M30A
ST4M218M30A
ST4M218M30A
ST4M218M30
YTA390A
KSAD30-8
ADSB30-302
10108049

Cage Codes:

Boeing Company, The (CAGE 76301)
Sargent Aerospace & Defense, Llc (CAGE 97613)
New Hampshire Ball Bearings, Inc. (CAGE 15860)
Rbc Transport Dynamics Corp. (CAGE 09455)
Rexnord Industries, Llc (CAGE 77896)
Law Jc & Son Incorporated (CAGE 97631)
Nimikkeistokeskus Ncb Finland (CAGE A486G)

Schedule B & Trade:

Schedule B: 8482300040 (NAICS 332991)

Spherical roller bearings, single row
SITC: 74630

Spherical roller bearings
End Use: 21180

Industrial machines, other

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:

NMFC:

114870 - Bearing/bushing metal
WCC:

742 - Bearings
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL:

P - 77.5
ACC:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
D
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
9b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $1,397.33 to $2,328.89..
Does NSN 3120-01-133-7939 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy, Finland, Spain, Australia, and Canada
What is the NIIN of NSN 3120-01-133-7939?
011337939 or 01-133-7939
Does NSN 3120-01-133-7939 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3120-01-133-7939?
Solicitation SPE4A516TY785 for qty 20 on 12/31/1969
When was this national stock number assigned to the federal catalog?
Jun 22, 1982