PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11504Diaphragm Assembly,relieving

Monnier Inc · NSN 4820-00-878-8825 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-878-8825 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-878-8825. Primary manufacturer part number: 11504.
Features
  • Diaphragm Assembly,relieving — FSC 4820
  • General Characteristics Item Description: CONSIST OF PART NUMBERS,11084,11092,11076,11086 AND 1114
  • 1 verified cross-reference
  • Primary manufacturer: Monnier Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Diaphragm Assembly,relieving, cataloged under National Stock Number 4820-00-878-8825, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Monnier Inc. Government technical data includes 1 verified specification, 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
NSN4820-00-878-8825
Primary Part Number11504
Item NameDiaphragm Assembly,relieving
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMonnier Inc
StatusACTIVE
General Characteristics Item DescriptionCONSIST OF PART NUMBERS,11084,11092,11076,11086 AND 1114
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5342-00-356-3232BP14886-1 INTERCHANGEABLE
Lever
Burke Products Inc
5930-00-422-494811-504 INTERCHANGEABLE
Switch,sensitive
Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Illinois Tool Works
5935-00-972-0542 INTERCHANGEABLE
Connector,plug,electrical
5950-01-009-7624986167-1C INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5905-01-079-3187 INTERCHANGEABLE
Resistor Network,fixed,film
4940-01-109-181711504 INTERCHANGEABLE
Pressure,kit,tubing
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
3110-01-159-5006 INTERCHANGEABLE
Insulator,bearing
6130-01-223-6137 INTERCHANGEABLE
Power Supply Assembly
5330-01-305-758660511518-7 INTERCHANGEABLE
Gasket
Northrop Grumman Systems Corporation
6515-01-384-9030115.04 INTERCHANGEABLE
Instrument and Implant Set,mini-
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
11504 Monnier Inc (USA)
Related Parts
5342-00-356-3232INTERCHANGEABLE
LEVER
BP14886-1
5930-00-422-4948INTERCHANGEABLE
SWITCH,SENSITIVE
11-504
5935-00-972-0542INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5950-01-009-7624INTERCHANGEABLE
REACTOR
986167-1C
5905-01-079-3187INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
4940-01-109-1817INTERCHANGEABLE
PRESSURE,KIT,TUBING
11504
3110-01-159-5006INTERCHANGEABLE
INSULATOR,BEARING
6130-01-223-6137INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
5330-01-305-7586INTERCHANGEABLE
GASKET
60511518-7
6515-01-384-9030INTERCHANGEABLE
INSTRUMENT AND IMPLANT SET,MINI-
115.04
7643-01-404-5469INTERCHANGEABLE
TOPOGRAPHIC GEOSPATIAL PRODUCTS
1150 4
5345-01-584-5805INTERCHANGEABLE
DISK,ABRASIVE
11504

Frequently Asked Questions

What is NSN 4820-00-878-8825?

NSN 4820-00-878-8825 is a Diaphragm Assembly,relieving, manufactured by Monnier Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-878-8825?

NSN 4820-00-878-8825 has 1 cross-referenced part number: 11504 (Monnier Inc).

What NSN replaces 4820-00-878-8825?

There are 12 known substitutes for 4820-00-878-8825: 5342-00-356-3232, 5930-00-422-4948, 5935-00-972-0542 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11504?

Key specifications for 11504: General Characteristics Item Description: CONSIST OF PART NUMBERS,11084,11092,11076,11086 AND 1114. 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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