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NSN 4820-01-375-0375Government record, cited

Plug, Rotary, Valve4820-01-375-0375

NSN 4820-01-375-0375 · NIIN 013750375 · Part number U540443
Triumph Thermal Systems, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 78943
Government record, cited
NSN 4820-01-375-0375 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-375-0375. Manufacturer of record part number: U540443.
Also searched as  4820-01-375-0375 · 4820013750375 · NIIN 013750375 · 01-375-0375 · FSC 4820 Valves, Nonpowered · CAGE 78943 · U540443
Nearby stock numbers  ·
Features
  • Plug,rotary,valve — FSC 4820
  • Plug Length: 0.900 INCHES NOMINAL IN
  • Surface Treatment: ANODIZE
  • Material: ALUMINUM ALLOY
  • Plug Design: SEGMENTED
  • 1 manufacturer part number on file
  • Manufacturer of record: Triumph Thermal Systems, Llc
Identification
  • NSN: 4820-01-375-0375
  • NIIN: 013750375
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: U540443
  • Manufacturer: Triumph Thermal Systems, Llc
General Description

The Plug,rotary,valve, cataloged under National Stock Number 4820-01-375-0375, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-375-0375
Primary Part NumberU540443
Item NamePlug,rotary,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerTriumph Thermal Systems, Llc
StatusACTIVE
Plug Length0.900 INCHES NOMINAL IN
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY
Plug DesignSEGMENTED
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
U540443 PRIMARY Triumph Thermal Systems, Llc (USA)
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 4820-01-375-0375?

NSN 4820-01-375-0375 is a Plug,rotary,valve, manufactured by Triumph Thermal Systems, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-375-0375?

NSN 4820-01-375-0375 has 1 manufacturer part number on file: U540443 (Triumph Thermal Systems, Llc).

What are the specifications of U540443?

Key specifications for U540443: Plug Length: 0.900 INCHES NOMINAL IN; Overall Length: 0.944 INCHES NOMINAL IN; Surface Treatment: ANODIZE; Material: ALUMINUM ALLOY. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-375-0375 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.

What is the DEMIL code for NSN 4820-01-375-0375?

NSN 4820-01-375-0375 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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