4820-01-442-0439
Valve Seat
Find complete technical information, availability, and procurement data for NSN 4820-01-442-0439 All details are based on official government and industry records to support accurate and compliant procurement.
A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.
4.625 inches nominal body inside diameter, 3a single threaded portion thread class, 1.375 inches nominal overall height, 0.752 inches nominal single threaded portion thread length, 5.140 inches nominal body outside diameter
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Thread Class
- 3a single threaded portion
- Thread Length
- 0.752 inches nominal single threaded portion
- Overall Height
- 1.375 inches nominal
- Body Outside Diameter
- 5.140 inches nominal
- Body Inside Diameter
- 4.625 inches nominal
- End Item Identification
- seawolf class ssn
- Thread Quantity Per Inch
- 12 single threaded portion
- Hardness Rating
- 115.0 rockwell r nominal seat
- Nominal Thread Size
- 5.250 inches single threaded portion
- Seating Surface Shape
- flat
- Special Features
- a/k/a seat, lower
- Material
- plastic polytetrafluoroethylene seat
- Style Designator
- plain
- Thread Series Designator
- un single threaded portion
Related Parts & Specifications
This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.
| Part Number | Name |
|---|---|
| 218020209 | Valve Seat |
| 2643-1002-63 FN A6 | Valve Seat |
| 801-6556655 FIND A6 | Valve Seat |
| 801-6556655-A6 | Valve Seat |
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- Q - "commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A15500
- A - Item does not contain precious metal.
- 0022113
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 8481909090
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- AX
- 051080
- Z
- 29300
- W - Rating variable
- 594 - Pumps and parts, (machinery and parts),(less than 35 feet)
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- VZ -
- faucets,bibcocks,gates valves
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 4820-01-442-0439
What is the FSCG of the NSN 4820-01-442-0439?
Does the NSN 4820-01-442-0439 have a Schedule B code assigned?
Does NSN 4820-01-442-0439 require demilitarization?
Does NSN 4820-01-442-0439 contain precious materials?
Does NSN 4820-01-442-0439 contain hazardous materials?
When the NSN 4820-01-442-0439 was assigned to the Federal Catalog?
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