Product Details | VALVE SEAT

4820-00-956-1426 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: 591606, 591-606, 60591PC606, 60-591PC606, 60773PC606, 60-773PC606, 4820-00-956-1426, 00-956-1426, 4820009561426, 009561426

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 11 MAY 1966 00-956-1426

Drawings & Photos | NSN 4820-00-956-1426


Demand History | NSN 4820-00-956-1426

Part Number Request Date QTY Origin
591-606 2025-05-125 8 DIBBS
60-591PC606 2025-05-125 8 DIBBS
60-773PC606 2025-05-125 8 DIBBS
591-606 2025-04-110 5 DIBBS
60-591PC606 2025-04-110 5 DIBBS
60-773PC606 2025-04-110 5 DIBBS
591-606 2025-04-98 4 DIBBS
60-591PC606 2025-04-98 4 DIBBS
60-773PC606 2025-04-98 4 DIBBS
591-606 2025-03-82 4 DIBBS
60-591PC606 2025-03-82 4 DIBBS
60-773PC606 2025-03-82 4 DIBBS
591-606 2023-12-361 8 DIBBS
60-591PC606 2023-12-361 8 DIBBS
60-773PC606 2023-12-361 8 DIBBS
591-606 2023-11-330 8 DIBBS
60-591PC606 2023-11-330 8 DIBBS
60-773PC606 2023-11-330 8 DIBBS
591-606 2023-11-316 8 DIBBS
60-591PC606 2023-11-316 8 DIBBS
60-773PC606 2023-11-316 8 DIBBS
591-606 2023-08-226 8 DIBBS
60-591PC606 2023-08-226 8 DIBBS
60-773PC606 2023-08-226 8 DIBBS
591-606 2023-08-215 8 DIBBS
60-591PC606 2023-08-215 8 DIBBS
60-773PC606 2023-08-215 8 DIBBS
591-606 2021-06-173 6 DIBBS
60-591PC606 2021-06-173 6 DIBBS
60-773PC606 2021-06-173 6 DIBBS
591-606 2021-05-127 4 DIBBS
60-591PC606 2021-05-127 4 DIBBS
60-773PC606 2021-05-127 4 DIBBS
591-606 2021-04-109 4 DIBBS
60-591PC606 2021-04-109 4 DIBBS
60-773PC606 2021-04-109 4 DIBBS
591-606 2021-04-98 2 DIBBS
60-591PC606 2021-04-98 2 DIBBS
60-773PC606 2021-04-98 2 DIBBS
591-606 2020-10-294 4 DIBBS
60-591PC606 2020-10-294 4 DIBBS
60-773PC606 2020-10-294 4 DIBBS
591-606 2020-06-170 4 DIBBS
60-591PC606 2020-06-170 4 DIBBS
60-773PC606 2020-06-170 4 DIBBS
4820-00-956-1426 2017-07-184 6 DIBBS
4820-00-956-1426 2017-06-172 6 DIBBS
4820-00-956-1426 2017-02-44 6 DIBBS
4820-00-956-1426 2017-02-33 6 DIBBS
4820-00-956-1426 2013-10-281 7 DIBBS

Cross Reference | NSN 4820-00-956-1426

Part Number Cage Code Manufacturer
591-606 27235 HARDIE-TYNES CO., INC.
60-591PC606 27235 HARDIE-TYNES CO., INC.
60-773PC606 27235 HARDIE-TYNES CO., INC.

Request a Quote

What Our Customers Say

Compare

NSNs for Compare ( up to 4 ): Add 4820-00-956-1426

Technical Data | NSN 4820-00-956-1426

Characteristic Specifications
STYLE DESIGNATOR B6 PLAIN
OVERALL HEIGHT 0.685 INCHES MINIMUM AND 0.695 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 1.339 INCHES MINIMUM AND 1.400 INCHES MAXIMUM
BODY INSIDE DIAMETER 1.095 INCHES MINIMUM AND 1.100 INCHES MAXIMUM
MATERIAL STEEL COMP 440C SEAT
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED STD SINGLE MATERIAL RESPONSE SEAT
HARDNESS RATING 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM SEAT
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG 45.000 NOMINAL
SEAL ACCOMMODATION TYPE GROOVED
MANUFACTURERS CODE 27235
DESIGN CONTROL REFERENCE 591-606

Restrictions/Controls & Freight Information | NSN 4820-00-956-1426

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
Less than truck load rating W Rating Variable
Water commodity Code 576 unknown
Originating Activity Code HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 4820-00-956-1426

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