Product Details | HELICAL COMPRESSION SPRING SEAT

5340-01-172-9501 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: MC15909, 5340-01-172-9501, 01-172-9501, 5340011729501, 011729501

Hardware and Abrasives | Hardware, Commercial

Supply Group (FSG) NSN Assign. NIIN
53 28 FEB 1984 01-172-9501

Drawings & Photos | NSN 5340-01-172-9501


Cross Reference | NSN 5340-01-172-9501

Part Number Cage Code Manufacturer
MC15909 76050 EATON AEROSPACE LLC M C AEROSPACE DIV

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Technical Data | NSN 5340-01-172-9501

Characteristic Specifications
MATERIAL STEEL, AMS 5643
MATERIAL HARDNESS RATING 77.7 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 82.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
SURFACE TREATMENT PASSIVATED
STYLE DESIGNATOR N12 SEAT
OVERALL HEIGHT 0.3200 INCHES NOMINAL
END DIAMETER 0.2330 INCHES NOMINAL
DISTANCE FROM END TO FIRST STEP 0.0590 INCHES NOMINAL
FIRST STEP DIAMETER 0.3800 INCHES NOMINAL
FIRST STEP LENGTH 0.0600 INCHES NOMINAL
SECOND STEP DIAMETER 0.5000 INCHES NOMINAL
SECOND STEP LENGTH 0.0710 INCHES NOMINAL
BORE DIAMETER 0.0630 INCHES NOMINAL
COUNTERBORE LENGTH 0.2610 INCHES NOMINAL
BORE TAPER IN DEG 45.0
COUNTERSINK ANGLE IN DEG 45.0
SEAT ANGLE IN DEG 30.0
DESIGN TYPE SOLID
SPECIAL FEATURES SURFACE TREAT.-PASSIVATE PER MCP38,KELSEY-HAYES CO.;NOT CASEHARDENED
III FSC APPLICATION DATA ACFT HYD SYSTEM
MANUFACTURERS CODE 76050
DESIGN CONTROL REFERENCE MC15909

Restrictions/Controls & Freight Information | NSN 5340-01-172-9501

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
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
NMF Description 095190 HARDWARE, NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code KE Naval ICP
Philadelphia, PA 19111
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5340-01-172-9501

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative