PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1779Plate,spectacle,valve

Droitcour Co · NSN 4820-01-417-2309 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-417-2309 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-417-2309. Primary manufacturer part number: 1779.
Features
  • Plate,spectacle,valve — FSC 4820
  • Material: STEEL
  • 2 verified cross-references
  • Primary manufacturer: Droitcour Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Plate,spectacle,valve, cataloged under National Stock Number 4820-01-417-2309, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Droitcour Co. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-417-2309
Primary Part Number1779
Item NamePlate,spectacle,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDroitcour Co
StatusACTIVE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-072-83910002391779 INTERCHANGEABLE
Spring,helical,compression
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3110-00-100-0719 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5330-00-374-3151QD613C INTERCHANGEABLE
Gasket
Wisconsin Motors, Llc
2915-00-535-3214 INTERCHANGEABLE
Spring,by Pass Valv
6125-00-548-0173 INTERCHANGEABLE
Armature,dynamotor
5930-00-593-9927695603-1 INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corp
5306-00-639-4864931110 INTERCHANGEABLE
Bolt,internal Wrenching
Eaton Aerospace, Llc Dba Jackson South
5950-00-647-5732789638PC1 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6240-00-683-0328 INTERCHANGEABLE
Lamp,incandescent
5360-01-178-1733 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
2253-1-21 Droitcour Co (USA)
1779 PRIMARY Droitcour Co (USA)
Related Parts
5360-00-072-8391INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
0002391779
3110-00-100-0719INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5330-00-374-3151INTERCHANGEABLE
GASKET
QD613C
2915-00-535-3214INTERCHANGEABLE
SPRING,BY PASS VALV
6125-00-548-0173INTERCHANGEABLE
ARMATURE,DYNAMOTOR
5930-00-593-9927INTERCHANGEABLE
SWITCH,ROTARY
695603-1
5306-00-639-4864INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
931110
5950-00-647-5732INTERCHANGEABLE
TRANSFORMER,POWER
789638PC1
6240-00-683-0328INTERCHANGEABLE
LAMP,INCANDESCENT
5360-01-178-1733INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2530-01-226-1634INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,MASTER
5895-01-261-3083INTERCHANGEABLE
PANEL,INDICATOR
430624-1

Frequently Asked Questions

What is NSN 4820-01-417-2309?

NSN 4820-01-417-2309 is a Plate,spectacle,valve, manufactured by Droitcour Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-417-2309?

NSN 4820-01-417-2309 has 2 cross-referenced part numbers: 2253-1-21 (Droitcour Co), 1779 (Droitcour Co).

What NSN replaces 4820-01-417-2309?

There are 12 known substitutes for 4820-01-417-2309: 5360-00-072-8391, 3110-00-100-0719, 5330-00-374-3151 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1779?

Key specifications for 1779: End Item Identification: SEAWOLF CLASS SSN; Material: STEEL; Overall Length: 0.878 INCHES NOMINAL IN; Overall Width: 0.250 INCHES NOMINAL IN. 4 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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