PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2620-902 ASSEMBLY E 1INValve,globe

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4820-01-205-7819 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-205-7819 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-205-7819. Primary manufacturer part number: 2620-902 ASSEMBLY E 1IN.
Features
  • Valve,globe — FSC 4820
  • Bonnet Attachment Method: THREADED
  • Style Designator: STRAIGHT THRU
  • Nominal Outside Diameter Tube Accommodated: 1.000 INCHES ALL ENDS IN
  • Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Material: PLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
  • Flow Control Device: DISK
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Polyamide Nylon Flow Control Device construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-01-205-7819, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4820-01-205-7819
Primary Part Number2620-902 ASSEMBLY E 1IN
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
Bonnet Attachment MethodTHREADED
Style DesignatorSTRAIGHT THRU
Nominal Outside Diameter Tube Accommodated1.000 INCHES ALL ENDS IN
Connection StyleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialPLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
Flow Control DeviceDISK
Valve Operation MethodMANUAL
Bonnet TypeINSIDE SCREW
Features ProvidedBONNET PACKING
MaterialBRONZE BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-067-39572620-902X6 PIECE 23 1 1/2IN INTERCHANGEABLE
Disk,valve
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-185-93982620-902X6 PIECE 22 1 1/2IN INTERCHANGEABLE
Valve,gate
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
845-1889568 ASSEMBLY E 1IN Naval Ship Systems Command (USA)
2620-902 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-1889568 Naval Ship Systems Command (USA)
2620-902 ASSEMBLY E 1IN PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4820-01-067-3957INTERCHANGEABLE
DISK,VALVE
2620-902X6 PIECE 23 1 1/2IN
4820-01-185-9398INTERCHANGEABLE
VALVE,GATE
2620-902X6 PIECE 22 1 1/2IN

Frequently Asked Questions

What is NSN 4820-01-205-7819?

NSN 4820-01-205-7819 is a Valve,globe, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-205-7819?

NSN 4820-01-205-7819 has 4 cross-referenced part numbers: 845-1889568 ASSEMBLY E 1IN (Naval Ship Systems Command), 2620-902 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-1889568 (Naval Ship Systems Command), 2620-902 ASSEMBLY E 1IN (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-205-7819?

There are 2 known substitutes for 4820-01-205-7819: 4820-01-067-3957, 4820-01-185-9398. Verify interchangeability with system specifications before substitution.

What are the specifications of 2620-902 ASSEMBLY E 1IN?

Key specifications for 2620-902 ASSEMBLY E 1IN: Bonnet Attachment Method: THREADED; Style Designator: STRAIGHT THRU; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES ALL ENDS IN; Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS. 12 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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