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4820-01-442-9943

Valve Seat

4820014429943 014429943 803-6397434-X4XXXX-049 CD-023-20-49 6397434-4-049L1 7383858-6397434-4-049L1 7550478-6397434-4-049L1 7550478-6397434-4-049 803-6397434-X4XXXX-049L1 803-6397434-X41XXX-049L1 H547-0001-6397434-4-049L1 G547-0002-6397434-4-049L1 CD-023-20-49L1

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. View more Valve Seat

Managed by United States

NSN Created on 28 Mar 1997

Data Last Changed
January 2024

NATO Update Count
15

NATO Data Quality

STYL Style B1A for 4820-01-442-9943 1/1 — NSN 4820-01-442-9943 (Identification) 1/1

Marketplace 4820-01-442-9943

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Restrictions 4820-01-442-9943

IUID Required

4820-01-442-9943 is a Valve Seat that is specifically designed to be or selected as being nuclear hard. In addition it has other critical features such as tolerance, fit restrictions or application.This item has been confirmed as a Critical Munitions List Item or a Sensitive Commerce Control List Item and cannot be in the possession of any party anywhere in the World who is not an authorized NATO Government. Any other possessor of this item should mutilate it now as possession violates international and local laws. This item is a US Munitions List Item and must be mutilated to scrap. This item is not suspected to be hazardous. This item does not contain a precious metal.

Import and Export 4820-01-442-9943

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End Users 4820-01-442-9943

US Navy (N1H5)
Effective Date:: 1 Mar 1997
Supplementary Collaborators:: JB
Supplementary Receivers:: GG; AMC 1 AMSC G IMC P

Approved Sources 4820-01-442-9943

Part Number
Manufacturer
Status
803-6397434-X4XXXX-049: 53711 - Naval Sea Systems Command (Active); Incomplete Reference; RNCC 3 RNVC 1 DAC 1
CD-023-20-49: 53711 - Naval Sea Systems Command (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC 1
6397434-4-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
7383858-6397434-4-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
7550478-6397434-4-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
7550478-6397434-4-049: 53711 - Naval Sea Systems Command (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
803-6397434-X4XXXX-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
803-6397434-X41XXX-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
H547-0001-6397434-4-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
G547-0002-6397434-4-049L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6
CD-023-20-49L1: 03950 - Naval Inventory Control Point (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 6

Datasheet 4820-01-442-9943

Characteristic
Specifications
FIIG: A15500
Criticality Code Justification [CRTL]: Zzzy
Flange Diameter [ABKK]: 1.555 Inches Nominal
Flange Seat To Disk End Height [AJRF]: 0.153 Inches Nominal
Material Document And Classification [MDCL]: Mil-C-24252 Mil Spec Single Material Response Overall
Material [MATT]: Cobalt Comp 1 Overall
Nominal Thread Size [CQJX]: 1.375 Inches Single Threaded Portion
Reference Number Differentiating Characteristics [ZZZY]: Material Controlled Iaw Navsea 0948-Lp-045-7010 Material Control Standard For Level I Items
Thread Series Designator [THSD]: Un Single Threaded Portion
Thread Quantity Per Inch [CMLP]: 20 Single Threaded Portion
Style Designator [STYL]: Threaded Flanged
Thread Class [AAJD]: 3A Single Threaded Portion

Management Data 4820-01-442-9943

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Effective Date: Organization; Unit of Issue; Unit Price; Qty Unit Pack
Oct 2022: Department of the Navy (DN); EA; Subscribe; 1
Oct 2021: Department of the Navy (DN); EA; Subscribe; 1
Oct 2020: Department of the Navy (DN); EA; Subscribe; 1
Oct 2019: Department of the Navy (DN); EA; Subscribe; 1

Navy

Cognizance:

1H: Consumable material assigned to NAVICP MECH for inventory management
Naval Inventory Control Point, Mechanicsburg

Special Material ID:

L1: An item that supports either a SUBSAFE or Level 1 system that has undergone the extreme material control and quality assurance techniques that provide objective evidence of its acceptance for its appropriate application. Each item has certification papers (or special markings that provide traceability to the certification) that pedigree its material and physical properties, provide traceability, to manufacturer, contract list and lot, and document the quality assurance system and test requirements applied to the item.

Issue, Repair, Requisition Restriction Code:

00: No Restriction

Special Material Content:

9: Non-Hazardous or Non-Sensitive Item

NATO Stock Numbers Related to 4820-01-442-9943

4820-22-625-1047 4820-12-197-1981 4820-12-375-4761 4810-19-002-2078 4820-99-411-7717 4820-12-334-1839 4820-12-331-7820 4820-66-127-6673 4810-12-385-6766 4820-12-347-0695 4820-99-526-9939 4820-66-141-2771 4820-99-556-8442 4810-12-315-6887 4810-12-176-6758 4820-98-200-1718 4820-12-701-3681 4820-99-538-9044

Freight Information 4820-01-442-9943

4820-01-442-9943 has freight characteristics managed by the Food and Drug Administration (FDA).It has a National Motor Freight Classification (NMFC) of 051080. A Sub NMFC of Z. It has a NMFC Description of FAUCETS,BIBCOCKS,GATES VALVES. 4820-01-442-9943 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. 4820-01-442-9943 is rated as class 60 when transported by Less-Than Carload (LCL) rail or ocean freight. It has a Uniform Freight Classification (UFC) number of 29300 which rates the freight between FCL and LCL. 4820-01-442-9943 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 594 for ocean manifesting and military sealift. 4820-01-442-9943 is not classified as a special type of cargo when transported by water. 4820-01-442-9943 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.

Packaging Data 4820-01-442-9943

Responsible Activity
Packaging Data Source: Primary Inventory Control Activity (PICA); Packaging Data does not meet current MIL-STD-2073-1E

Storage Environment: Unheated General Purpose

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation: --; --; --; Over 10lb; Less than 85G; No Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying: 1; --; --; --; --; Any Suitable Process

Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking: No Requirement; No Requirement; PPP-C-795, Cellular Plastic Film Cushioning; or A-A-3129, Open Cell Plastic Cushioning; or PPP-C-1797, Polypropylene Foam Cushioning; or A-A-59136, Polyethylene Foam Cushioning; --; ASTM-D5118, Type CF, Class Domestic, Corrugated Fiberboard Box; Open for inspection or use only

Intermediate Pack Level

Quantity of Unit Packs
Container: --; No Requirement