Product Details | VALVE SEAT

4820-00-975-7128 A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: 42576, 9757128, 975-7128, 4820-00-975-7128, 00-975-7128, 4820009757128, 009757128

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-975-7128

Drawings & Photos | NSN 4820-00-975-7128


Demand History | NSN 4820-00-975-7128

Part Number Request Date QTY Origin
4820-00-975-7128 2015-01-22 76 DIBBS
4820-00-975-7128 2015-01-11 76 DIBBS
4820-00-975-7128 2014-04-98 97 DIBBS
4820-00-975-7128 2009-07-212 169 DIBBS

Cross Reference | NSN 4820-00-975-7128

Part Number Cage Code Manufacturer
42576 81873 WOODWARD HRT, INC.
975-7128 59155 MARINE DIESEL INC

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Technical Data | NSN 4820-00-975-7128

Characteristic Specifications
STYLE DESIGNATOR B6A PLAIN
FLANGE DIAMETER 0.434 INCHES MINIMUM AND 0.436 INCHES MAXIMUM
OVERALL HEIGHT 0.250 INCHES NOMINAL
BODY OUTSIDE DIAMETER 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
UNDER FLANGE HEIGHT 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER 0.124 INCHES MINIMUM AND 0.126 INCHES MAXIMUM FIRST STEP 0.250 INCHES NOMINAL SECOND STEP
MATERIAL STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HARDNESS RATING 58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 90.000 NOMINAL

Restrictions/Controls & Freight Information | NSN 4820-00-975-7128

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
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.
Category Code Description
NMF Description 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating S 60
Less than truck load rating W Rating Variable
Water commodity Code 576 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 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 4820-00-975-7128

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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 CodeGATG:H-1 IROQUOIS
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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each