PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41218Diaphragm Assembly,valve

Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems · NSN 4820-00-922-1396 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-922-1396 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-922-1396. Primary manufacturer part number: 41218.
Features
  • Diaphragm Assembly,valve — FSC 4820
  • General Characteristics Item Description: BLACK SYNTHETIC RUBBER DIAPHRAGM; STEEL CORROSION RESISTING ACTUATING MECHANISM; 2.625 IN. NOM OD; 0.665 IN. LG; 6 PLAIN MOUNTING HOLES; 0.162 IN. DIA SPACED 60.0 DEGREES APART ON A 2.250 IN. CIRCLE IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm Assembly,valve, cataloged under National Stock Number 4820-00-922-1396, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems. 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
NSN4820-00-922-1396
Primary Part Number41218
Item NameDiaphragm Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Corporation Dba Airframe Div Fuel & Motion Control Systems
StatusACTIVE
General Characteristics Item DescriptionBLACK SYNTHETIC RUBBER DIAPHRAGM; STEEL CORROSION RESISTING ACTUATING MECHANISM; 2.625 IN. NOM OD; 0.665 IN. LG; 6 PLAIN MOUNTING HOLES; 0.162 IN. DIA SPACED 60.0 DEGREES APART ON A 2.250 IN. CIRCLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6250-00-079-98884-12-18 INTERCHANGEABLE
Lampholder
Lighting Components and Design Incorporated Dba Lc&d
5945-00-111-4915412-18 INTERCHANGEABLE
Relay,electromagnetic
Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/
3110-00-155-6461218WG INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
6510-00-202-40000200049 INTERCHANGEABLE
Gauze,absorbent
Szy Holdings, Llc Dba Szy Holdings Llc
5133-00-228-1398 INTERCHANGEABLE
Drill,twist
5905-00-279-859250097PC14 INTERCHANGEABLE
Resistor,adjustable
Ward Leonard Ct Llc
5310-01-139-962041218K INTERCHANGEABLE
Washer,special
Griswold Industries Dba Cla-Val Co
6680-01-177-1478 INTERCHANGEABLE
Gage Rod-Cap,liquid Level
5962-01-311-28433221385-1 INTERCHANGEABLE
Microcircuit,digital
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6680-01-644-891841218 INTERCHANGEABLE
Gage Rod,liquid Level
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
41218 PRIMARY Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA)
Related Parts
6250-00-079-9888INTERCHANGEABLE
LAMPHOLDER
4-12-18
5945-00-111-4915INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
412-18
3110-00-155-6461INTERCHANGEABLE
BEARING,BALL,ANNULAR
218WG
6510-00-202-4000INTERCHANGEABLE
GAUZE,ABSORBENT
0200049
5133-00-228-1398INTERCHANGEABLE
DRILL,TWIST
5905-00-279-8592INTERCHANGEABLE
RESISTOR,ADJUSTABLE
50097PC14
5310-01-139-9620INTERCHANGEABLE
WASHER,SPECIAL
41218K
6680-01-177-1478INTERCHANGEABLE
GAGE ROD-CAP,LIQUID LEVEL
5962-01-311-2843INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
3221385-1
6680-01-644-8918INTERCHANGEABLE
GAGE ROD,LIQUID LEVEL
41218
5120-01-651-4491INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
41218
2510-01-729-4912INTERCHANGEABLE
DOOR,HATCH,VEHICLE
41218

Frequently Asked Questions

What is NSN 4820-00-922-1396?

NSN 4820-00-922-1396 is a Diaphragm Assembly,valve, manufactured by Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-922-1396?

NSN 4820-00-922-1396 has 1 cross-referenced part number: 41218 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems).

What NSN replaces 4820-00-922-1396?

There are 12 known substitutes for 4820-00-922-1396: 6250-00-079-9888, 5945-00-111-4915, 3110-00-155-6461 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41218?

Key specifications for 41218: General Characteristics Item Description: BLACK SYNTHETIC RUBBER DIAPHRAGM; STEEL CORROSION RESISTING ACTUATING MECHANISM; 2.625 IN. NOM OD; 0.665 IN. LG; 6 PLAIN MOUNTING HOLES; 0.162 IN. DIA SPACED 60.0 DEGREES APART ON A 2.250 IN. CIRCLE IN. 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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