PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4878Diaphragm,valve,flat

Imi Cash Valve Inc · NSN 4820-00-626-1754 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-626-1754 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-626-1754. Primary manufacturer part number: 4878.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Bolt Hole Quantity: 4
  • Style Designator: FLAT
  • Center to Center Distance Between Bolt Holes Along Width: 2.062 INCHES NOMINAL IN
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Center to Center Distance Between Bolt Holes Along Length: 2.062 INCHES NOMINAL IN
  • Material Thickness: 0.063 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-626-1754, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-626-1754
Primary Part Number4878
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerImi Cash Valve Inc
StatusACTIVE
Bolt Hole Quantity4
Style DesignatorFLAT
Center to Center Distance Between Bolt Holes Along Width2.062 INCHES NOMINAL IN
Hole Diameter0.375 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Length2.062 INCHES NOMINAL IN
Material Thickness0.063 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5940-00-143-4774MS25036-153 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
4820-00-357-5107 INTERCHANGEABLE
Diaphragm,valve,flat
2990-00-675-14861876 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
5120-01-074-4025GS15980-1 INTERCHANGEABLE
Tool,spring Compression
Hamilton Sundstrand Corporation Dba Collins Aerospace
6150-01-243-02344878 INTERCHANGEABLE
Cable Assembly,power,electrical
Alto-Shaam, Inc
4310-01-277-90814878 INTERCHANGEABLE
Ring,piston
Coffin Turbo Pump Inc
6550-01-552-93894878 INTERCHANGEABLE
Liner,reservoir
Corning Glass Works
Cross-Reference Index
Part NumberManufacturer
5282PC4878 Imi Cash Valve Inc (USA)
4878 PRIMARY Imi Cash Valve Inc (USA)
Related Parts
5940-00-143-4774INTERCHANGEABLE
TERMINAL,LUG
MS25036-153
4820-00-357-5107INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
2990-00-675-1486INTERCHANGEABLE
MUFFLER,EXHAUST
1876
5120-01-074-4025INTERCHANGEABLE
TOOL,SPRING COMPRESSION
GS15980-1
6150-01-243-0234INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
4878
4310-01-277-9081INTERCHANGEABLE
RING,PISTON
4878
6550-01-552-9389INTERCHANGEABLE
LINER,RESERVOIR
4878

Frequently Asked Questions

What is NSN 4820-00-626-1754?

NSN 4820-00-626-1754 is a Diaphragm,valve,flat, manufactured by Imi Cash Valve Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-626-1754?

NSN 4820-00-626-1754 has 2 cross-referenced part numbers: 5282PC4878 (Imi Cash Valve Inc), 4878 (Imi Cash Valve Inc).

What NSN replaces 4820-00-626-1754?

There are 7 known substitutes for 4820-00-626-1754: 5940-00-143-4774, 4820-00-357-5107, 2990-00-675-1486 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4878?

Key specifications for 4878: Bolt Hole Quantity: 4; Overall Length: 2.875 INCHES NOMINAL IN; Style Designator: FLAT; Center to Center Distance Between Bolt Holes Along Width: 2.062 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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