PartsTable TECHNICAL DATA SHEET
NSN 4820-01-439-8058Government record, cited

Disk, Valve4820-01-439-8058

NSN 4820-01-439-8058 · NIIN 014398058 · Part number 1-1327-1-0438
Fluid Mechanics Valve Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 52253
Government record, cited
NSN 4820-01-439-8058 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-439-8058. Manufacturer of record part number: 1-1327-1-0438.
Also searched as  4820-01-439-8058 · 4820014398058 · NIIN 014398058 · 01-439-8058 · FSC 4820 Valves, Nonpowered · CAGE 52253 · 1-1327-1-0438
Nearby stock numbers  ·
Features
  • Disk,valve — FSC 4820
  • 1 manufacturer part number on file
  • Manufacturer of record: Fluid Mechanics Valve Company
Identification
  • NSN: 4820-01-439-8058
  • NIIN: 014398058
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 1-1327-1-0438
  • Manufacturer: Fluid Mechanics Valve Company
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-439-8058, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fluid Mechanics Valve Company. 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
NSN4820-01-439-8058
Primary Part Number1-1327-1-0438
Item NameDisk,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerFluid Mechanics Valve Company
StatusACTIVE
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
1-1327-1-0438 PRIMARY Fluid Mechanics Valve Company (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 4820-01-439-8058?

NSN 4820-01-439-8058 is a Disk,valve, manufactured by Fluid Mechanics Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-439-8058?

NSN 4820-01-439-8058 has 1 manufacturer part number on file: 1-1327-1-0438 (Fluid Mechanics Valve Company).

What are the specifications of 1-1327-1-0438?

Key specifications for 1-1327-1-0438: End Item Identification: 3800 SERIES RELIEF VALVE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-439-8058 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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