Product Details | HELICAL COMPRESSION SPRING SEAT

5340-00-021-5553 A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a RETAINER, HELICAL COMPRESSION SPRING. Excludes WASHER (1), (as modified); SEAT, BALL SOCKET and HOLDER, SPRING. See also ROTOR, ENGINE POPPET VALVE.

Part Alternates: 23036, 5340-00-021-5553, 00-021-5553, 5340000215553, 000215553

Hardware and Abrasives | Hardware, Commercial

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1961 00-021-5553

Cross Reference | NSN 5340-00-021-5553

Part Number Cage Code Manufacturer
23036 81982 HYDRO-AIRE, INC.

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Technical Data | NSN 5340-00-021-5553

Characteristic Specifications
MATERIAL STEEL
MATERIAL HARDNESS RATING 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SURFACE TREATMENT PASSIVATED
DESIGN TYPE SOLID
III FSC APPLICATION DATA AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS
MANUFACTURERS CODE 81982
DESIGN CONTROL REFERENCE 23036

Restrictions/Controls & Freight Information | NSN 5340-00-021-5553

Category Code Description
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information