PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2378Valve Assembly,shuttle

Howell Laboratories Inc Dba Howell Laboratories Inc · NSN 4440-00-022-2630 · FSC 4440 · No Item Name Available
Verified by PartsTable
NSN 4440-00-022-2630 — this item is cataloged by the U.S. Government under National Stock Number 4440-00-022-2630. Primary manufacturer part number: A2378.
Features
  • Valve Assembly,shuttle — FSC 4440
  • General Characteristics Item Description: 1 ALUMINUM VALVE SEAT; 1 METALLIC VALVE DISK; 1 RUBBER VALVE FLAT DISK; 1 ALUMINUM THD CAP; 1 PLASTIC STEM; 1 ALUMINUM HEX NUT
  • 2 verified cross-references
  • Primary manufacturer: Howell Laboratories Inc Dba Howell Laboratories Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,shuttle, cataloged under National Stock Number 4440-00-022-2630, is classified within Federal Supply Class 4440 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4440-00-022-2630
Primary Part NumberA2378
Item NameValve Assembly,shuttle
FSC / FSG4440 / 44 — No Item Name Available
ManufacturerHowell Laboratories Inc Dba Howell Laboratories Inc
StatusACTIVE
General Characteristics Item Description1 ALUMINUM VALVE SEAT; 1 METALLIC VALVE DISK; 1 RUBBER VALVE FLAT DISK; 1 ALUMINUM THD CAP; 1 PLASTIC STEM; 1 ALUMINUM HEX NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-430-5670581209-1 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
A2378 PRIMARY Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
2117 PC 9-10 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
Related Parts
5950-00-430-5670INTERCHANGEABLE
COIL,RADIO FREQUENCY
581209-1

Frequently Asked Questions

What is NSN 4440-00-022-2630?

NSN 4440-00-022-2630 is a Valve Assembly,shuttle, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4440 (No Item Name Available). Status: active.

What are the part numbers for NSN 4440-00-022-2630?

NSN 4440-00-022-2630 has 2 cross-referenced part numbers: A2378 (Howell Laboratories Inc Dba Howell Laboratories Inc), 2117 PC 9-10 (Howell Laboratories Inc Dba Howell Laboratories Inc).

What NSN replaces 4440-00-022-2630?

There is 1 known substitute for 4440-00-022-2630: 5950-00-430-5670. Verify interchangeability with system specifications before substitution.

What are the specifications of A2378?

Key specifications for A2378: General Characteristics Item Description: 1 ALUMINUM VALVE SEAT; 1 METALLIC VALVE DISK; 1 RUBBER VALVE FLAT DISK; 1 ALUMINUM THD CAP; 1 PLASTIC STEM; 1 ALUMINUM HEX NUT. 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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