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NSN 4820-01-478-4389Government record, cited

Parts Kit, Pilot Control Valve4820-01-478-4389

NSN 4820-01-478-4389 · NIIN 014784389 · Part number 4375-02
Watts Automatic Control Valve Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0LX27
Government record, cited
NSN 4820-01-478-4389 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-478-4389. Manufacturer of record part number: 4375-02.
Also searched as  4820-01-478-4389 · 4820014784389 · NIIN 014784389 · 01-478-4389 · FSC 4820 Valves, Nonpowered · CAGE 0LX27 · 4375-02
Nearby stock numbers  ·
Features
  • Parts Kit,pilot Control Valve — FSC 4820
  • Component Quantity: 7
  • Component Document Origin: INDUSTRIAL
  • Document Source: 0LX27
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Watts Automatic Control Valve Inc
Identification
  • NSN: 4820-01-478-4389
  • NIIN: 014784389
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 4375-02
  • Manufacturer: Watts Automatic Control Valve Inc
General Description

The Parts Kit,pilot Control Valve, cataloged under National Stock Number 4820-01-478-4389, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Automatic Control Valve Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-478-4389
Primary Part Number4375-02
Item NameParts Kit,pilot Control Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerWatts Automatic Control Valve Inc
StatusACTIVE
Component Quantity7
Component Document OriginINDUSTRIAL
Document Source0LX27
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
4375-02 PRIMARY Watts Automatic Control Valve Inc (USA)
4375-02 Velcon Canada Inc (CAN)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-478-4389?

NSN 4820-01-478-4389 is a Parts Kit,pilot Control Valve, manufactured by Watts Automatic Control Valve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-478-4389?

NSN 4820-01-478-4389 has 2 manufacturer part numbers on file: 4375-02 (Watts Automatic Control Valve Inc), 4375-02 (Velcon Canada Inc).

What are the specifications of 4375-02?

Key specifications for 4375-02: Component Quantity: 7; Component Document Origin: INDUSTRIAL; Document Source: 0LX27; Part Name Assigned by Controlling Agency: WATTS FIGURE 16 PILOT REPAIR KIT VITON. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-478-4389 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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