PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40526GTest Fitting Assembly

Griswold Industries Dba Cla-Val Co · NSN 4820-01-103-9029 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-103-9029 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-103-9029. Primary manufacturer part number: 40526G.
Features
  • Test Fitting Assembly — FSC 4820
  • General Characteristics Item Description: ALUMINUM; 4.000 IN USED FOR SPRINKLER VALVE PLUS O RING IN
  • 3 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Test Fitting Assembly, cataloged under National Stock Number 4820-01-103-9029, 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 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-103-9029
Primary Part Number40526G
Item NameTest Fitting Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
General Characteristics Item DescriptionALUMINUM; 4.000 IN USED FOR SPRINKLER VALVE PLUS O RING IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5961-00-007-9128T2302A INTERCHANGEABLE
Semiconductor Device,thyristor
L3 Technologies, Inc. Div Communication Systems-East
3455-00-222-921811500 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
5961-00-401-7792 INTERCHANGEABLE
Semiconductor Device,thyristor
5950-00-946-4451 INTERCHANGEABLE
Transformer
5330-01-015-9699CEC4781 INTERCHANGEABLE
Gasket
C. E. Conover & Co., Inc.
4730-01-103-1026 INTERCHANGEABLE
Clamp,hose
4820-01-229-4746 INTERCHANGEABLE
Valve,regulating,temperature
5120-01-335-0629 INTERCHANGEABLE
Screwdriver,flat Tip
Cross-Reference Index
Part NumberManufacturer
40528 Griswold Industries Dba Cla-Val Co (USA)
40526G PRIMARY Griswold Industries Dba Cla-Val Co (USA)
40526 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5961-00-007-9128INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
T2302A
3455-00-222-9218INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11500
5961-00-401-7792INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5950-00-946-4451INTERCHANGEABLE
TRANSFORMER
5330-01-015-9699INTERCHANGEABLE
GASKET
CEC4781
4730-01-103-1026INTERCHANGEABLE
CLAMP,HOSE
4820-01-229-4746INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
5120-01-335-0629INTERCHANGEABLE
SCREWDRIVER,FLAT TIP

Frequently Asked Questions

What is NSN 4820-01-103-9029?

NSN 4820-01-103-9029 is a Test Fitting Assembly, 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 4820-01-103-9029?

NSN 4820-01-103-9029 has 3 cross-referenced part numbers: 40528 (Griswold Industries Dba Cla-Val Co), 40526G (Griswold Industries Dba Cla-Val Co), 40526 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-103-9029?

There are 8 known substitutes for 4820-01-103-9029: 5961-00-007-9128, 3455-00-222-9218, 5961-00-401-7792 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40526G?

Key specifications for 40526G: General Characteristics Item Description: ALUMINUM; 4.000 IN USED FOR SPRINKLER VALVE PLUS O RING 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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