Product Details | HELICAL COMPRESSION SPRING SEAT

5340-00-157-6425 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: 148749, 14874-9, 5340-00-157-6425, 00-157-6425, 5340001576425, 001576425

Hardware and Abrasives | Hardware, Commercial

Supply Group (FSG) NSN Assign. NIIN
53 14 MAY 1971 00-157-6425

Drawings & Photos | NSN 5340-00-157-6425


Cross Reference | NSN 5340-00-157-6425

Part Number Cage Code Manufacturer
14874-9 03990 INGERSOLL-RAND CO
14874-9 04577 CARLETON TECHNOLOGIES INC

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Technical Data | NSN 5340-00-157-6425

Characteristic Specifications
MATERIAL ALUMINUM ALLOY
MATERIAL HARDNESS RATING NOT RATED
SURFACE TREATMENT ANODIZED
STYLE DESIGNATOR N5 SEAT
OVERALL HEIGHT 0.7020 INCHES NOMINAL
END DIAMETER 0.2300 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM
DISTANCE FROM END TO FIRST STEP 0.5160 INCHES MINIMUM AND 0.5310 INCHES MAXIMUM
FIRST STEP DIAMETER 0.2800 INCHES MINIMUM AND 0.2850 INCHES MAXIMUM
FIRST STEP LENGTH 0.0150 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM
SECOND STEP DIAMETER 0.4040 INCHES MINIMUM AND 0.4050 INCHES MAXIMUM
BORE DIAMETER 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM
COUNTERBORE LENGTH 0.0420 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM
COUNTERBORE DIAMETER 0.2470 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM
DESIGN TYPE SOLID
SPECIAL FEATURES NOT CASEHARDENED

Restrictions/Controls & Freight Information | NSN 5340-00-157-6425

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: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.
Category Code Description
NMF Description 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating Q 70
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code CT U.S. Army Aviation and Missile Command (AIR)
Redstone Arsenal, AL 35898-5230
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
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 5340-00-157-6425

Category Code Description
Cognizance Codes9WNavy-owned stocks of material managed by the Army within the Army Troop Support and Aviation Materiel Readiness Command
Naval Inventory Control Point, Mechanicsburg
Source of SupplyB17US Army Aviation and Missile Command (Air)
ATTN: AMSMI-LC-MM-C
Redstone Arsenal, AL 35898-5230
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each