PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8K1Seat Assembly,valve

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 4820-00-024-9444 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-024-9444 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-024-9444. Primary manufacturer part number: 8K1.
Features
  • Seat Assembly,valve — FSC 4820
  • General Characteristics Item Description: CONSISTS OF ONE EA VALVE SEAT,ONE EA ROUND HEADED STEEL SCREW,ONE EA HEXAGON STEEL NUT,ONE EA STEEL COTTER PIN,ONE EA STEEL SPRING,ONE EA STEEL DISK,ONE EA ALUMINUM WASHER
  • 5 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat Assembly,valve, cataloged under National Stock Number 4820-00-024-9444, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-024-9444
Primary Part Number8K1
Item NameSeat Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF ONE EA VALVE SEAT,ONE EA ROUND HEADED STEEL SCREW,ONE EA HEXAGON STEEL NUT,ONE EA STEEL COTTER PIN,ONE EA STEEL SPRING,ONE EA STEEL DISK,ONE EA ALUMINUM WASHER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5342-00-533-17205331720 INTERCHANGEABLE
Ring
U S Army Tank Automotive Command Amsta-Im-Mm
5365-01-543-60288K1 INTERCHANGEABLE
Ring,connecting,round
Eaton Corporation Dba Eaton Inoac
Cross-Reference Index
Part NumberManufacturer
8K1 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
8K1 Ingersoll Rand Co (USA)
8K1 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
8K1 Siemens Energy, Inc. Dba Dresser-Rand (USA)
8K1 PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
Related Parts
5342-00-533-1720INTERCHANGEABLE
RING
5331720
5365-01-543-6028INTERCHANGEABLE
RING,CONNECTING,ROUND
8K1

Frequently Asked Questions

What is NSN 4820-00-024-9444?

NSN 4820-00-024-9444 is a Seat Assembly,valve, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-024-9444?

NSN 4820-00-024-9444 has 5 cross-referenced part numbers: 8K1 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), 8K1 (Ingersoll Rand Co), 8K1 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 8K1 (Siemens Energy, Inc. Dba Dresser-Rand), 8K1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).

What NSN replaces 4820-00-024-9444?

There are 2 known substitutes for 4820-00-024-9444: 5342-00-533-1720, 5365-01-543-6028. Verify interchangeability with system specifications before substitution.

What are the specifications of 8K1?

Key specifications for 8K1: General Characteristics Item Description: CONSISTS OF ONE EA VALVE SEAT,ONE EA ROUND HEADED STEEL SCREW,ONE EA HEXAGON STEEL NUT,ONE EA STEEL COTTER PIN,ONE EA STEEL SPRING,ONE EA STEEL DISK,ONE EA ALUMINUM WASHER. 1 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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