PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40237Bonnet Assembly

Setra Systems, Inc. Dba Gems Sensors · NSN 4820-01-099-3225 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-099-3225 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-099-3225. Primary manufacturer part number: 40237.
Features
  • Bonnet Assembly — FSC 4820
  • General Characteristics Item Description: NICKEL COPPER ALLOY
  • 1 verified cross-reference
  • Primary manufacturer: Setra Systems, Inc. Dba Gems Sensors
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Bonnet Assembly, cataloged under National Stock Number 4820-01-099-3225, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-099-3225
Primary Part Number40237
Item NameBonnet Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3455-00-129-571617420 INTERCHANGEABLE
Cutter,milling,side
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
2815-00-428-6162140391 INTERCHANGEABLE
Cover
Cummins Inc.
5360-00-597-4580228829PC112 INTERCHANGEABLE
Spring,helical,compression
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1740-00-716-51514023-7 INTERCHANGEABLE
Spring Unit,air
Pdi Ground Support Systems, Inc.
5962-01-225-676040237 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5342-01-270-000640237 INTERCHANGEABLE
Mount,resilient,weapon System
L & R Manufacturing Company
2910-01-593-519140237 INTERCHANGEABLE
Pump,fuel,electrical
Purolator Products Co Div Motor Components, Llc
Cross-Reference Index
Part NumberManufacturer
40237 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
3455-00-129-5716INTERCHANGEABLE
CUTTER,MILLING,SIDE
17420
2815-00-428-6162INTERCHANGEABLE
COVER
140391
5360-00-597-4580INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
228829PC112
1740-00-716-5151INTERCHANGEABLE
SPRING UNIT,AIR
4023-7
5962-01-225-6760INTERCHANGEABLE
MICROCIRCUIT,MEMORY
40237
5342-01-270-0006INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
40237
2910-01-593-5191INTERCHANGEABLE
PUMP,FUEL,ELECTRICAL
40237

Frequently Asked Questions

What is NSN 4820-01-099-3225?

NSN 4820-01-099-3225 is a Bonnet Assembly, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-099-3225?

NSN 4820-01-099-3225 has 1 cross-referenced part number: 40237 (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 4820-01-099-3225?

There are 7 known substitutes for 4820-01-099-3225: 3455-00-129-5716, 2815-00-428-6162, 5360-00-597-4580 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40237?

Key specifications for 40237: General Characteristics Item Description: NICKEL COPPER ALLOY. 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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