PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2640-608X1ASSYDValve,orifice

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4820-01-226-8878 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-226-8878 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-226-8878. Primary manufacturer part number: 2640-608X1ASSYD.
Features
  • Valve,orifice — FSC 4820
  • General Characteristics Item Description: .75 IPS,3000 PSI RATED
  • 3 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,orifice, cataloged under National Stock Number 4820-01-226-8878, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-226-8878
Primary Part Number2640-608X1ASSYD
Item NameValve,orifice
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
General Characteristics Item Description.75 IPS,3000 PSI RATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5360-00-306-5345160A139 INTERCHANGEABLE
Spring,helical,compression
Cummins Power Generation Inc.
6145-00-635-93098443 INTERCHANGEABLE
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Belden Wire and Cable Co Wire and Cable Office
6680-00-802-3701 INTERCHANGEABLE
Transmitter,liquid Quantity
5310-01-017-86658443 INTERCHANGEABLE
Nut,plain,hexagon
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5930-01-097-4690SSBL-D05-AW14 INTERCHANGEABLE
Switch,push
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
5330-01-339-88408443 INTERCHANGEABLE
Packing,preformed
Minnesota Rubber Co
6515-01-564-97389530 INTERCHANGEABLE
Sleeve,wrap-Around,pneumatic
Cardinal Health 200, Llc
6530-01-631-16538443 INTERCHANGEABLE
Rod,intravenous-Irrigation Conta
Brenner Metal Products Corp Div Brenner Metal Products
Cross-Reference Index
Part NumberManufacturer
2640-608X1ASSYD PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-2109826ASSYD PRIMARY Naval Ship Systems Command (USA)
8443 Derbyshire Machine & Tool Co (USA)
Related Parts
5360-00-306-5345INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
160A139
6145-00-635-9309INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8443
6680-00-802-3701INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
5310-01-017-8665INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8443
5930-01-097-4690INTERCHANGEABLE
SWITCH,PUSH
SSBL-D05-AW14
5330-01-339-8840INTERCHANGEABLE
PACKING,PREFORMED
8443
6515-01-564-9738INTERCHANGEABLE
SLEEVE,WRAP-AROUND,PNEUMATIC
9530
6530-01-631-1653INTERCHANGEABLE
ROD,INTRAVENOUS-IRRIGATION CONTA
8443

Frequently Asked Questions

What is NSN 4820-01-226-8878?

NSN 4820-01-226-8878 is a Valve,orifice, 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 4820-01-226-8878?

NSN 4820-01-226-8878 has 3 cross-referenced part numbers: 2640-608X1ASSYD (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2109826ASSYD (Naval Ship Systems Command), 8443 (Derbyshire Machine & Tool Co).

What NSN replaces 4820-01-226-8878?

There are 8 known substitutes for 4820-01-226-8878: 5360-00-306-5345, 6145-00-635-9309, 6680-00-802-3701 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2640-608X1ASSYD?

Key specifications for 2640-608X1ASSYD: General Characteristics Item Description: .75 IPS,3000 PSI RATED. 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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