PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1947MVSeat,valve

Hunt Valve Company, Inc. · NSN 4820-01-084-3584 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-084-3584 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-084-3584. Primary manufacturer part number: B1947MV.
Features
  • Seat,valve — FSC 4820
  • Seat Angle in Deg: 45.000 NOMINAL
  • Seating Surface Shape: ANGULAR
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Style Designator: PLAIN
  • Body Inside Diameter: 2.588 INCHES NOMINAL IN
  • Body Outside Diameter: 3.265 INCHES NOMINAL IN
  • 6 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-084-3584, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-084-3584
Primary Part NumberB1947MV
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Seat Angle in Deg45.000 NOMINAL
Seating Surface ShapeANGULAR
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Style DesignatorPLAIN
Body Inside Diameter2.588 INCHES NOMINAL IN
Body Outside Diameter3.265 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-01-084-7113B1948MV INTERCHANGEABLE
Seat,valve
Hunt Valve Company, Inc.
4820-01-122-3758S-1941 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
4820-01-122-4397S-1944 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
4820-01-122-7897S-1943 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
M-1861A SHEET 2 PIECE 10 Morland Valve Co Inc Sub of Smith Valve Corp (USA)
M-1861A SHEET 2 PIECE 10 Hunt Valve Company, Inc. (USA)
M-1861A Morland Valve Co Inc Sub of Smith Valve Corp (USA)
ST-1947 Hunt Valve Company, Inc. (USA)
ST-1947 Morland Valve Co Inc Sub of Smith Valve Corp (USA)
B1947MV PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
4820-01-084-7113INTERCHANGEABLE
SEAT,VALVE
B1948MV
4820-01-122-3758INTERCHANGEABLE
STEM,FLUID VALVE
S-1941
4820-01-122-4397INTERCHANGEABLE
STEM,FLUID VALVE
S-1944
4820-01-122-7897INTERCHANGEABLE
STEM,FLUID VALVE
S-1943

Frequently Asked Questions

What is NSN 4820-01-084-3584?

NSN 4820-01-084-3584 is a Seat,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-084-3584?

NSN 4820-01-084-3584 has 6 cross-referenced part numbers: M-1861A SHEET 2 PIECE 10 (Morland Valve Co Inc Sub of Smith Valve Corp), M-1861A SHEET 2 PIECE 10 (Hunt Valve Company, Inc.), M-1861A (Morland Valve Co Inc Sub of Smith Valve Corp), ST-1947 (Hunt Valve Company, Inc.), ST-1947 (Morland Valve Co Inc Sub of Smith Valve Corp) and 1 more.

What NSN replaces 4820-01-084-3584?

There are 4 known substitutes for 4820-01-084-3584: 4820-01-084-7113, 4820-01-122-3758, 4820-01-122-4397 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1947MV?

Key specifications for B1947MV: Seat Angle in Deg: 45.000 NOMINAL; Seating Surface Shape: ANGULAR; Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Style Designator: PLAIN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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