PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3802Silencer,valve

Air Techniques, Inc. · NSN 4820-01-122-9519 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-122-9519 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-122-9519. Primary manufacturer part number: 3802.
Features
  • Silencer,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Air Techniques, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Silencer,valve, cataloged under National Stock Number 4820-01-122-9519, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Air Techniques, Inc.. 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.

Catalog Facts
Item NameSilencer,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAir Techniques, Inc. (CAGE 53542); Northrop Grumman Systems Corporation (CAGE 26512)
Technical Specifications
ParameterValue
NSN4820-01-122-9519
Primary Part Number3802
Item NameSilencer,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAir Techniques, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-007-1925RNTC50 INTERCHANGEABLE
Box Connector,electrical
Egs Electrical Group Appleton Div
5330-00-152-83463802 INTERCHANGEABLE
Gasket
Clark Material Handling Company
6640-00-252-5059 INTERCHANGEABLE
Test Tube,comparison
5310-00-297-3250 INTERCHANGEABLE
Nut,plain,hexagon
2805-00-391-3094800517 INTERCHANGEABLE
Camshaft,engine
Am General Llc
6680-00-399-26733802 INTERCHANGEABLE
Cap,pump
King Engineering Corporation Dba King-Gage Systems
3030-00-409-8873380-2 INTERCHANGEABLE
Belts,v,matched Set
Muviq Usa, Llc
5905-00-549-5335 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5331-00-579-75483-802 INTERCHANGEABLE
O-Ring
Biomarine Inc
2920-00-672-9496XH-3802 INTERCHANGEABLE
Lead Assy,ignition
Heale Manufacturing Co Llc
Cross-Reference Index
Part NumberManufacturer
3802 PRIMARY Air Techniques, Inc. (USA)
GS557A1 Northrop Grumman Systems Corporation (USA)
Related Parts
5975-00-007-1925INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
RNTC50
5330-00-152-8346INTERCHANGEABLE
GASKET
3802
6640-00-252-5059INTERCHANGEABLE
TEST TUBE,COMPARISON
5310-00-297-3250INTERCHANGEABLE
NUT,PLAIN,HEXAGON
2805-00-391-3094INTERCHANGEABLE
CAMSHAFT,ENGINE
800517
6680-00-399-2673INTERCHANGEABLE
CAP,PUMP
3802
3030-00-409-8873INTERCHANGEABLE
BELTS,V,MATCHED SET
380-2
5905-00-549-5335INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5331-00-579-7548INTERCHANGEABLE
O-RING
3-802
2920-00-672-9496INTERCHANGEABLE
LEAD ASSY,IGNITION
XH-3802
6730-00-962-6092INTERCHANGEABLE
CASE,PHOTOGRAPHIC PROJECTOR
3802
2835-01-018-8188INTERCHANGEABLE
CONNECTOR,FLEXIBLE,TURBINE EXHAU
3802

Frequently Asked Questions

What is NSN 4820-01-122-9519?

NSN 4820-01-122-9519 is a Silencer,valve, manufactured by Air Techniques, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-122-9519?

NSN 4820-01-122-9519 has 2 cross-referenced part numbers: 3802 (Air Techniques, Inc.), GS557A1 (Northrop Grumman Systems Corporation).

What NSN replaces 4820-01-122-9519?

There are 12 known substitutes for 4820-01-122-9519: 5975-00-007-1925, 5330-00-152-8346, 6640-00-252-5059 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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