Product Details | HELICAL COMPRESSION SPRING SEAT

5340-00-657-8345 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: 178060, 5340-00-657-8345, 00-657-8345, 5340006578345, 006578345

Hardware and Abrasives | Hardware, Commercial

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-657-8345

Drawings & Photos | NSN 5340-00-657-8345


Cross Reference | NSN 5340-00-657-8345

Part Number Cage Code Manufacturer
178060 62983 EATON AEROSPACE LLC

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Technical Data | NSN 5340-00-657-8345

Characteristic Specifications
MATERIAL STEEL
STYLE DESIGNATOR N1 SEAT
OVERALL HEIGHT 0.1870 INCHES NOMINAL
END DIAMETER 0.4210 INCHES NOMINAL
DISTANCE FROM END TO FIRST STEP 0.0980 INCHES NOMINAL
FIRST STEP DIAMETER 0.5937 INCHES NOMINAL
BORE DIAMETER 0.2830 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM
COUNTERBORE LENGTH 0.0310 INCHES MINIMUM AND 0.0410 INCHES MAXIMUM
COUNTERBORE DIAMETER 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM
DESIGN TYPE SOLID
III FSC APPLICATION DATA PUMP UNIT,RECIPROCATING 4320006846070 P/N AA19529B
MANUFACTURERS CODE 62983
DESIGN CONTROL REFERENCE 178060

Restrictions/Controls & Freight Information | NSN 5340-00-657-8345

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.
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 128000 PUMPS PWR NOI/WORKING HEADS/PARTS
Less than car load rating
Less than truck load rating M 85.0
Water commodity Code 594 unknown
Originating Activity Code XX
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 Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5340-00-657-8345

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Materiel Management Aggregation CodeHSSX:AIRCRAFT HYDRAULIC SYSTEMS AND COMPONENTS
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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
Purchasing QTY
UOM
5
EA : Each