PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DDONSXL1Valve,linear,directional Control

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-377-1800 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-377-1800 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-377-1800. Primary manufacturer part number: DDONSXL1.
Features
  • Valve,linear,directional Control — FSC 4820
  • Criticality Code Justification: ZZZY
  • Body Material: STEEL
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • End Connection Quantity: 2
  • 6 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-377-1800, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-377-1800
Primary Part NumberDDONSXL1
Item NameValve,linear,directional Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Body MaterialSTEEL
Reference Number Differentiating CharacteristicsQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
End Connection Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-461-443022944N INTERCHANGEABLE
Valve,linear,directional Control
Leslie Controls, Inc. Dba Leslie Controls Inc
5310-01-468-87720367952000L INTERCHANGEABLE
Nut,plain,hexagon
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
DDONSXL1 Naval Inventory Control Point Mechanicsburg (USA)
DDONSL1 Naval Inventory Control Point Mechanicsburg (USA)
21829NL1 Naval Inventory Control Point Mechanicsburg (USA)
DDONSX Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
DDONS Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
21829N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-461-4430INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
22944N
5310-01-468-8772INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0367952000L

Frequently Asked Questions

What is NSN 4820-01-377-1800?

NSN 4820-01-377-1800 is a Valve,linear,directional Control, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-377-1800?

NSN 4820-01-377-1800 has 6 cross-referenced part numbers: DDONSXL1 (Naval Inventory Control Point Mechanicsburg), DDONSL1 (Naval Inventory Control Point Mechanicsburg), 21829NL1 (Naval Inventory Control Point Mechanicsburg), DDONSX (Leslie Controls, Inc. Dba Leslie Controls Inc), DDONS (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-01-377-1800?

There are 2 known substitutes for 4820-01-377-1800: 4820-01-461-4430, 5310-01-468-8772. Verify interchangeability with system specifications before substitution.

What are the specifications of DDONSXL1?

Key specifications for DDONSXL1: Criticality Code Justification: ZZZY; Body Material: STEEL; Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS; End Connection Quantity: 2. 5 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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