PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34138JDiaphragm,valve,flat

Griswold Industries Dba Cla-Val Co · NSN 4820-00-216-9022 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-216-9022 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-216-9022. Primary manufacturer part number: 34138J.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: RUBBER FABRIC REINFORCED
  • Bolt Circle Diameter: 11.750 INCHES NOMINAL IN
  • Bolt Hole Quantity: 12
  • Hole Diameter: 0.750 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Outside Diameter: 12.875 INCHES NOMINAL IN
  • Center Hole Diameter: 1.125 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Fabric Reinforced construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-216-9022, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-216-9022
Primary Part Number34138J
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusCANCELLED
MaterialRUBBER FABRIC REINFORCED
Bolt Circle Diameter11.750 INCHES NOMINAL IN
Bolt Hole Quantity12
Hole Diameter0.750 INCHES NOMINAL IN
Style DesignatorFLAT
Outside Diameter12.875 INCHES NOMINAL IN
Center Hole Diameter1.125 INCHES NOMINAL IN
Material Thickness0.128 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5940-00-230-991110-53798 INTERCHANGEABLE
Splice,conductor
Precision Aerospace Corporation Dba Precision Engine Control
5340-00-522-3636341SCZE38 INTERCHANGEABLE
Snap Hook
Buckles International, Inc.
5905-00-643-7475C3-737 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Philips Electronic Instruments Inc
5935-01-086-9359 INTERCHANGEABLE
Connector,receptacle,electrical
5305-01-098-366518623 INTERCHANGEABLE
Screw
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
4320-01-555-347334138 INTERCHANGEABLE
Pump,centrifugal
Industrial Technologies and Services Llc
4320-01-724-055527978 INTERCHANGEABLE
Plate,wear,rotary Pump
Industrial Technologies and Services Llc
5331-01-725-130137142 INTERCHANGEABLE
O-Ring
Industrial Technologies and Services Llc
5331-01-725-132636911 INTERCHANGEABLE
O-Ring
Industrial Technologies and Services Llc
5330-01-725-140027969 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Industrial Technologies and Services Llc
Cross-Reference Index
Part NumberManufacturer
34138 Griswold Industries Dba Cla-Val Co (USA)
C34138 Griswold Industries Dba Cla-Val Co (USA)
C5410 Griswold Industries Dba Cla-Val Co (USA)
C3737 Griswold Industries Dba Cla-Val Co (USA)
34138J PRIMARY Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5940-00-230-9911INTERCHANGEABLE
SPLICE,CONDUCTOR
10-53798
5340-00-522-3636INTERCHANGEABLE
SNAP HOOK
341SCZE38
5905-00-643-7475INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
C3-737
5935-01-086-9359INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5305-01-098-3665INTERCHANGEABLE
SCREW
18623
4320-01-555-3473INTERCHANGEABLE
PUMP,CENTRIFUGAL
34138
4320-01-724-0555INTERCHANGEABLE
PLATE,WEAR,ROTARY PUMP
27978
5331-01-725-1301INTERCHANGEABLE
O-RING
37142
5331-01-725-1326INTERCHANGEABLE
O-RING
36911
5330-01-725-1400INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
27969
5307-01-725-2710INTERCHANGEABLE
STUD,PLAIN
30316
4320-01-725-6126INTERCHANGEABLE
VALVE FLAPPER,PUMP
26098

Frequently Asked Questions

What is NSN 4820-00-216-9022?

NSN 4820-00-216-9022 is a Diaphragm,valve,flat, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-216-9022?

NSN 4820-00-216-9022 has 5 cross-referenced part numbers: 34138 (Griswold Industries Dba Cla-Val Co), C34138 (Griswold Industries Dba Cla-Val Co), C5410 (Griswold Industries Dba Cla-Val Co), C3737 (Griswold Industries Dba Cla-Val Co), 34138J (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-00-216-9022?

There are 12 known substitutes for 4820-00-216-9022: 5940-00-230-9911, 5340-00-522-3636, 5905-00-643-7475 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34138J?

Key specifications for 34138J: Material: RUBBER FABRIC REINFORCED; Bolt Circle Diameter: 11.750 INCHES NOMINAL IN; Bolt Hole Quantity: 12; Hole Diameter: 0.750 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-216-9022 still in active supply?

NSN 4820-00-216-9022 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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