PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61550Diaphragm,actuator Valve,special

Griswold Industries Dba Cla-Val Co · NSN 4820-01-528-3960 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-528-3960 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-528-3960. Primary manufacturer part number: 61550.
Features
  • Diaphragm,actuator Valve,special — FSC 4820
  • Material: RUBBER
  • Media for Which Designed: WATER
  • 3 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-528-3960, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 2 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
NSN4820-01-528-3960
Primary Part Number61550
Item NameDiaphragm,actuator Valve,special
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
MaterialRUBBER
Media for Which DesignedWATER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5970-00-117-5336 INTERCHANGEABLE
Insulator,standoff
3120-00-169-832861514 INTERCHANGEABLE
Bearing,sleeve
Waterous Company
5306-00-472-276361550 INTERCHANGEABLE
Bolt,assembled Washer
New Venture Gear Inc New Process Gear Div
5330-00-599-4993 INTERCHANGEABLE
Seal,plain Encased
5935-00-683-2746 INTERCHANGEABLE
Jack,telephone
4320-01-019-989661550 INTERCHANGEABLE
Seat Spring,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
5977-01-181-0136 INTERCHANGEABLE
Holder,electrical Contact Brush
5950-01-227-8707 INTERCHANGEABLE
Transformer Assembly
8440-01-525-6337 INTERCHANGEABLE
Gaiters
8440-01-525-6338 INTERCHANGEABLE
Gaiters
Cross-Reference Index
Part NumberManufacturer
61514 Griswold Industries Dba Cla-Val Co (USA)
61550 PRIMARY Griswold Industries Dba Cla-Val Co (USA)
61514PC4 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5970-00-117-5336INTERCHANGEABLE
INSULATOR,STANDOFF
3120-00-169-8328INTERCHANGEABLE
BEARING,SLEEVE
61514
5306-00-472-2763INTERCHANGEABLE
BOLT,ASSEMBLED WASHER
61550
5330-00-599-4993INTERCHANGEABLE
SEAL,PLAIN ENCASED
5935-00-683-2746INTERCHANGEABLE
JACK,TELEPHONE
4320-01-019-9896INTERCHANGEABLE
SEAT SPRING,PUMP
61550
5977-01-181-0136INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
5950-01-227-8707INTERCHANGEABLE
TRANSFORMER ASSEMBLY
8440-01-525-6337INTERCHANGEABLE
GAITERS
8440-01-525-6338INTERCHANGEABLE
GAITERS
8440-01-525-6339INTERCHANGEABLE
GAITERS
8440-01-525-6340INTERCHANGEABLE
GAITERS

Frequently Asked Questions

What is NSN 4820-01-528-3960?

NSN 4820-01-528-3960 is a Diaphragm,actuator Valve,special, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-528-3960?

NSN 4820-01-528-3960 has 3 cross-referenced part numbers: 61514 (Griswold Industries Dba Cla-Val Co), 61550 (Griswold Industries Dba Cla-Val Co), 61514PC4 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-528-3960?

There are 12 known substitutes for 4820-01-528-3960: 5970-00-117-5336, 3120-00-169-8328, 5306-00-472-2763 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61550?

Key specifications for 61550: End Item Identification: 4820-01-528-3950, VALVE, DIAPHRAGM, STOP FOR NUCLEAR REATOR BOUNDRY AREA; Part Name Assigned by Controlling Agency: DIAPHRAGM; Material: RUBBER; Media for Which Designed: WATER. 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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