PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2731Nozzle,valve

Delavan Inc · NSN 4820-01-383-5146 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-383-5146 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-383-5146. Primary manufacturer part number: 2731.
Features
  • Nozzle,valve — FSC 4820
  • Material: COPPER ALLOY
  • 2 verified cross-references
  • Primary manufacturer: Delavan Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Nozzle,valve, cataloged under National Stock Number 4820-01-383-5146, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Delavan Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4820-01-383-5146
Primary Part Number2731
Item NameNozzle,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDelavan Inc
StatusACTIVE
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-044-2297292-5955P1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon Co
5905-00-106-9351 INTERCHANGEABLE
Resistor,fixed,composition
5365-00-205-8007 INTERCHANGEABLE
Spacer,ring
5935-00-902-705927-31 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
5905-01-129-43052731 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Avo Multi-Amp Corp
5995-01-142-02272731 INTERCHANGEABLE
Cable Assembly
Mission Systems Davenport Inc.
2540-01-155-36112731 INTERCHANGEABLE
Tripod Arm Assembly
Chantilly Development Corporation Dba Acme Specialty Mfg Co Div Acme Specialty Mfg.
5935-01-164-06572731 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
4730-01-216-67782731RSS INTERCHANGEABLE
Clamp,hose
Oetiker, Inc
5315-01-287-87039-086-100531 INTERCHANGEABLE
Pin,quick Release
Grove U.s. Llc Dba Grove Us Llc
Cross-Reference Index
Part NumberManufacturer
2731 Delavan Inc (USA)
2731 R.w. Beckett Corporation Div Beckett Energy Systems (USA)
Related Parts
5950-00-044-2297INTERCHANGEABLE
REACTOR
292-5955P1
5905-00-106-9351INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5365-00-205-8007INTERCHANGEABLE
SPACER,RING
5935-00-902-7059INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
27-31
5905-01-129-4305INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
2731
5995-01-142-0227INTERCHANGEABLE
CABLE ASSEMBLY
2731
2540-01-155-3611INTERCHANGEABLE
TRIPOD ARM ASSEMBLY
2731
5935-01-164-0657INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2731
4730-01-216-6778INTERCHANGEABLE
CLAMP,HOSE
2731RSS
5315-01-287-8703INTERCHANGEABLE
PIN,QUICK RELEASE
9-086-100531
5130-01-309-8427INTERCHANGEABLE
BIT,SCREWDRIVER
273-1
5985-01-424-4390INTERCHANGEABLE
SLEEVE,ANTENNA SUPPORT
2731

Frequently Asked Questions

What is NSN 4820-01-383-5146?

NSN 4820-01-383-5146 is a Nozzle,valve, manufactured by Delavan Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-383-5146?

NSN 4820-01-383-5146 has 2 cross-referenced part numbers: 2731 (Delavan Inc), 2731 (R.w. Beckett Corporation Div Beckett Energy Systems).

What NSN replaces 4820-01-383-5146?

There are 12 known substitutes for 4820-01-383-5146: 5950-00-044-2297, 5905-00-106-9351, 5365-00-205-8007 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2731?

Key specifications for 2731: Material: COPPER ALLOY; Special Features: OIL BURNER NOZZLE;0.65 80.0 DEG SOLID CORE SPRAY PATTERN;9/16-24 UNEF-2E THD; End Item Identification: 4940-00-249-7315 TRAILER MOUNTED PRESSURE JET STEAM CLEANER. 3 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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