MS21154S7

Self-Aligning Plain Bearing

This page provides complete and verified information for part number MS21154S7, NSN 3120-01-356-3229

You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.

MS21154S7
Federal Supply Group
Bearings
Federal Supply Classification
3120 Unmounted Plain Bearings
National Stock Number
3120-01-356-3229
Item Name Code
13208
Assigment Date
04/02/1992 (33 years ago)

An electro-mechanical device used to remotely adjust the azimuth and/or elevation of a camera assembly.

0.3380 inches minimum and 0.3480 inches maximum outer member width, 0.4350 inches minimum and 0.4370 inches maximum inner member width, 18850 pounds static radial load rating, 0.4370 inches minimum and 0.4375 inches maximum bore diameter, 0.9057 inches minimum and 0.9062 inches maximum outer member outside diameter

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Bore Diameter
0.4370 inches minimum and 0.4375 inches maximum
Outer Member Outside Diameter
0.9057 inches minimum and 0.9062 inches maximum
Outer Member Width
0.3380 inches minimum and 0.3480 inches maximum
Inner Member Width
0.4350 inches minimum and 0.4370 inches maximum
Static Radial Load Rating
18850 pounds
Hardness Rating
56.0 rockwell c minimum inner member
Hardness Rating
27.0 rockwell c minimum and 36.0 rockwell c maximum outer race member
Lubrication Feature
groove external outer member
Lubrication Feature
groove internal inner member
Lubrication Feature
groove internal outer member
Lubrication Feature
perforation outer race member
Lubrication Feature
perforation inner member
Material
grease and disulfide molybdenum lubrication
Material
steel comp 440c inner member
Material
steel comp e4340 or steel comp 4130 or steel comp 8630 outer race member
Material Document And Classification
ans 5630 assn std single material response inner member
Material Document And Classification
mil-g-21164 mil spec single material response lubrication
Material Document And Classification
mil-s-6758 mil spec 1st material response or mil-s-6758 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response outer race member
Surface Treatment
cadmium outer race member
Surface Treatment
chromium inner member
Surface Treatment Document And Classification
qq-c-320,cl 2 ty 1 fed spec single treatment response or qq-c-320,cl 2 ty 2 fed spec single treatment response inner member
Surface Treatment Document And Classification
qq-p-416,ty1 cl 2 fed spec single treatment response outer race member
Style Designator
without insert or liner with staking groove

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
1 - Full descriptive item identification
Automatic Data Processing Point
0 - Represents items with no adp components
Demilitarization
A - 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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A045A0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0013208
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
8482300040

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
KH
National Motor Freight Classification Item Number
095190
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
49790
National Motor Freight Class Rating
W - Rating variable
Water Commodity
742 - Bearings
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
VZ -
National Motor Freight Description
hardware, noi

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for MS21154S7

What is the FSCG of the NSN 3120-01-356-3229?
The FSCG of the NSN 3120-01-356-3229 is 3120
Does the NSN 3120-01-356-3229 have a Schedule B code assigned?
Yes, the Schedule B code is 8482300040
Does NSN 3120-01-356-3229 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 3120-01-356-3229 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-356-3229 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 3120-01-356-3229 was assigned to the Federal Catalog?
It was assigned 33 years ago, on Thu, Apr 2, 1992

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Price & Availability

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Ready to Ship

This item is in stock and ready to ship. Available units may vary in condition (new, surplus, refurbished) and are stored across multiple verified facilities. Request a quote to confirm quantity and lead time.

New Material 348
New Surplus 1
Total 349
Availability of this item was last updated on: 02/25/2026 07:02 AM EST. Stock levels and pricing are subject to change.
Aviation Suppliers Association Member AS9120-ISO9001 Certification

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