PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4703Seat,valve

Crane Co Flomatics Div · NSN 4820-00-865-1998 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-865-1998 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-865-1998. Primary manufacturer part number: 4703.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN
  • Body Outside Diameter: 2.028 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
  • Body Inside Diameter: 1.250 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Crane Co Flomatics Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-865-1998, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Flomatics Div. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-865-1998
Primary Part Number4703
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCrane Co Flomatics Div
StatusACTIVE
Seating Surface ShapeFLAT
Style DesignatorPLAIN
Body Outside Diameter2.028 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
Body Inside Diameter1.250 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-133-8694SM-C-537441-2 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2825-00-146-80904703 INTERCHANGEABLE
Shaft Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5120-00-212-4703 INTERCHANGEABLE
Wrench,box
5999-00-450-484847-03 INTERCHANGEABLE
Delay Line
Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
5360-00-526-3862 INTERCHANGEABLE
Spring,helical,extension
3020-00-529-1615470-3 INTERCHANGEABLE
Link,roller Chain
Dana Off Highway Products, Llc
1680-00-678-40224703 INTERCHANGEABLE
Shaft Spacer,detail
B/e Aerospace Inc Dba Interturbine
5360-01-230-63124703 INTERCHANGEABLE
Separator Spring
Mag Aerospace Industries, Llc Div Safran Cabins
4730-01-441-1233 INTERCHANGEABLE
Coupling,tube
5340-01-448-9475204300-0771-4703 INTERCHANGEABLE
Clamp,loop
International Machine & Tool Corporation
Cross-Reference Index
Part NumberManufacturer
4703 Crane Co Flomatics Div (USA)
Related Parts
5935-00-133-8694INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SM-C-537441-2
2825-00-146-8090INTERCHANGEABLE
SHAFT ASSEMBLY
4703
5120-00-212-4703INTERCHANGEABLE
WRENCH,BOX
5999-00-450-4848INTERCHANGEABLE
DELAY LINE
47-03
5360-00-526-3862INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3020-00-529-1615INTERCHANGEABLE
LINK,ROLLER CHAIN
470-3
1680-00-678-4022INTERCHANGEABLE
SHAFT SPACER,DETAIL
4703
5360-01-230-6312INTERCHANGEABLE
SEPARATOR SPRING
4703
4730-01-441-1233INTERCHANGEABLE
COUPLING,TUBE
5340-01-448-9475INTERCHANGEABLE
CLAMP,LOOP
204300-0771-4703
6760-01-461-5921INTERCHANGEABLE
FLASH,CAMERA,ELECTRONIC
6695-01-478-0018INTERCHANGEABLE
BEZEL,WINDOW MOUNTING
4703

Frequently Asked Questions

What is NSN 4820-00-865-1998?

NSN 4820-00-865-1998 is a Seat,valve, manufactured by Crane Co Flomatics Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-865-1998?

NSN 4820-00-865-1998 has 1 cross-referenced part number: 4703 (Crane Co Flomatics Div).

What NSN replaces 4820-00-865-1998?

There are 12 known substitutes for 4820-00-865-1998: 5935-00-133-8694, 2825-00-146-8090, 5120-00-212-4703 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4703?

Key specifications for 4703: Seating Surface Shape: FLAT; Style Designator: PLAIN; Overall Height: 0.212 INCHES NOMINAL IN; Body Outside Diameter: 2.028 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN. 5 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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