PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8781Seat,valve

Imi Cash Valve Inc · NSN 4820-00-969-2125 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-969-2125 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-969-2125. Primary manufacturer part number: 8781.
Features
  • Seat,valve — FSC 4820
  • Flange Seat to Disk End Height: 0.192 INCHES NOMINAL IN
  • Style Designator: PLAIN FLANGED
  • Seating Surface Shape: ANGULAR
  • Body Outside Diameter: 1.318 INCHES NOMINAL IN
  • Body Inside Diameter: 1.062 INCHES NOMINAL IN
  • Under Flange Height: 0.375 INCHES NOMINAL IN
  • Material: NICKEL ALLOY OVERALL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-969-2125, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Imi Cash Valve Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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
NSN4820-00-969-2125
Primary Part Number8781
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerImi Cash Valve Inc
StatusACTIVE
Flange Seat to Disk End Height0.192 INCHES NOMINAL IN
Style DesignatorPLAIN FLANGED
Seating Surface ShapeANGULAR
Body Outside Diameter1.318 INCHES NOMINAL IN
Body Inside Diameter1.062 INCHES NOMINAL IN
Under Flange Height0.375 INCHES NOMINAL IN
MaterialNICKEL ALLOY OVERALL
Seat Angle in Deg45.000 NOMINAL
Flange Diameter1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-013-9982SMB604237-1 INTERCHANGEABLE
Cover,electrical Connector
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3110-00-117-0779 INTERCHANGEABLE
Bearing,roller,thrust
4730-00-155-700101028008 INTERCHANGEABLE
Union,pipe
Nibco Inc Chemtrol Div
3455-00-313-655835182 INTERCHANGEABLE
Cutter,milling,end
Niagara Cutter Inc
2590-00-512-9224101750R91 INTERCHANGEABLE
Cover Assembly
Navistar Intl Corp Truck Br Ohio Plant
4820-00-542-30516677 INTERCHANGEABLE
Disk,valve
Imi Cash Valve Inc
5895-00-771-5404103222-000 INTERCHANGEABLE
Ring Assembly,contr
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
3455-01-050-984415785 INTERCHANGEABLE
Cutter,milling,end
Precision Industries Inc Sharpaloy Div
4820-01-097-05177225 INTERCHANGEABLE
Stem,fluid Valve
Imi Cash Valve Inc
3510-01-140-297915785-1 INTERCHANGEABLE
Rod,valve Lever
Forenta Lp
Cross-Reference Index
Part NumberManufacturer
15785 ITEM 13 Imi Cash Valve Inc (USA)
8781 PRIMARY Imi Cash Valve Inc (USA)
15785 Imi Cash Valve Inc (USA)
Related Parts
5935-00-013-9982INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
SMB604237-1
3110-00-117-0779INTERCHANGEABLE
BEARING,ROLLER,THRUST
4730-00-155-7001INTERCHANGEABLE
UNION,PIPE
01028008
3455-00-313-6558INTERCHANGEABLE
CUTTER,MILLING,END
35182
2590-00-512-9224INTERCHANGEABLE
COVER ASSEMBLY
101750R91
4820-00-542-3051INTERCHANGEABLE
DISK,VALVE
6677
5895-00-771-5404INTERCHANGEABLE
RING ASSEMBLY,CONTR
103222-000
3455-01-050-9844INTERCHANGEABLE
CUTTER,MILLING,END
15785
4820-01-097-0517INTERCHANGEABLE
STEM,FLUID VALVE
7225
3510-01-140-2979INTERCHANGEABLE
ROD,VALVE LEVER
15785-1
5962-01-163-4201INTERCHANGEABLE
MICROCIRCUIT,DIGITAL-LINEAR
PA60341-1
3120-01-174-8630INTERCHANGEABLE
BEARING,WASHER,THRUST
15785

Frequently Asked Questions

What is NSN 4820-00-969-2125?

NSN 4820-00-969-2125 is a Seat,valve, manufactured by Imi Cash Valve Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-969-2125?

NSN 4820-00-969-2125 has 3 cross-referenced part numbers: 15785 ITEM 13 (Imi Cash Valve Inc), 8781 (Imi Cash Valve Inc), 15785 (Imi Cash Valve Inc).

What NSN replaces 4820-00-969-2125?

There are 12 known substitutes for 4820-00-969-2125: 5935-00-013-9982, 3110-00-117-0779, 4730-00-155-7001 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8781?

Key specifications for 8781: Flange Seat to Disk End Height: 0.192 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED; Seating Surface Shape: ANGULAR; Body Outside Diameter: 1.318 INCHES NOMINAL IN. 9 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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