PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1577Diaphragm,valve,flat

Imi Cash Valve Inc · NSN 4820-01-025-3592 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-025-3592 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-025-3592. Primary manufacturer part number: 1577.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Outside Diameter: 4.500 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Style Designator: FLAT
  • Material Thickness: 0.075 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Imi Cash Valve Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-025-3592, 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 4 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-025-3592
Primary Part Number1577
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerImi Cash Valve Inc
StatusACTIVE
Outside Diameter4.500 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR
Style DesignatorFLAT
Material Thickness0.075 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4130-00-106-2427615-0003-001 INTERCHANGEABLE
Filter Media,air Conditioning
Acron Aviation, Inc.
5905-00-106-3893C600012808 INTERCHANGEABLE
Resistor Set,matched
Kearfott Corporation Div Guidance and Navigation Division
3110-00-184-1004 INTERCHANGEABLE
Bearing,ball,annular
6625-00-327-667515-77 INTERCHANGEABLE
Dipole,gain,precision Standard
Scientific Atlanta Inc
5340-00-467-0139A1054WB INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
2530-00-618-42963Q55 INTERCHANGEABLE
Quadrant
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5905-00-897-574798-915-2 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Bei Sensors & Systems Company, Inc. Dba Bei Duncan
2530-00-927-7165205369R91 INTERCHANGEABLE
Bearing Assembly,ve
Navistar Intl Corp Truck Br Ohio Plant
6130-01-033-9919SR106 INTERCHANGEABLE
Power Supply
Hdl Research Lab Inc
5895-01-053-0642 INTERCHANGEABLE
Mixer Stage,frequency
Cross-Reference Index
Part NumberManufacturer
1577 PRIMARY Imi Cash Valve Inc (USA)
V2872 Imi Cash Valve Inc (USA)
Related Parts
4130-00-106-2427INTERCHANGEABLE
FILTER MEDIA,AIR CONDITIONING
615-0003-001
5905-00-106-3893INTERCHANGEABLE
RESISTOR SET,MATCHED
C600012808
3110-00-184-1004INTERCHANGEABLE
BEARING,BALL,ANNULAR
6625-00-327-6675INTERCHANGEABLE
DIPOLE,GAIN,PRECISION STANDARD
15-77
5340-00-467-0139INTERCHANGEABLE
KEY BLANK
A1054WB
2530-00-618-4296INTERCHANGEABLE
QUADRANT
3Q55
5905-00-897-5747INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
98-915-2
2530-00-927-7165INTERCHANGEABLE
BEARING ASSEMBLY,VE
205369R91
6130-01-033-9919INTERCHANGEABLE
POWER SUPPLY
SR106
5895-01-053-0642INTERCHANGEABLE
MIXER STAGE,FREQUENCY
5355-01-080-0572INTERCHANGEABLE
KNOB
1577
5330-01-204-2042INTERCHANGEABLE
PACKING ASSEMBLY

Frequently Asked Questions

What is NSN 4820-01-025-3592?

NSN 4820-01-025-3592 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 4820-01-025-3592?

NSN 4820-01-025-3592 has 2 cross-referenced part numbers: 1577 (Imi Cash Valve Inc), V2872 (Imi Cash Valve Inc).

What NSN replaces 4820-01-025-3592?

There are 12 known substitutes for 4820-01-025-3592: 4130-00-106-2427, 5905-00-106-3893, 3110-00-184-1004 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1577?

Key specifications for 1577: Outside Diameter: 4.500 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR; Style Designator: FLAT; Material Thickness: 0.075 INCHES NOMINAL IN. 4 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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