PartsTable TECHNICAL DATA SHEET
NSN 4820-01-372-6031Government record, cited

Valve, Float4820-01-372-6031

NSN 4820-01-372-6031 · NIIN 013726031 · Part number 639AS9141
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 30003
Government record, cited
NSN 4820-01-372-6031 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-372-6031. Manufacturer of record part number: 639AS9141.
Also searched as  4820-01-372-6031 · 4820013726031 · NIIN 013726031 · 01-372-6031 · FSC 4820 Valves, Nonpowered · CAGE 30003 · 639AS9141
Nearby stock numbers  ·
Features
  • Valve,float — FSC 4820
  • Furnished Items and Quantity: 1 FILTER
  • Media for Which Designed: LIQUID SINGLE RESPONSE
  • Valve Operation Method: AUTOMATIC
  • 1 manufacturer part number on file
  • Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
  • NSN: 4820-01-372-6031
  • NIIN: 013726031
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 639AS9141
  • Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description

The Valve,float, cataloged under National Stock Number 4820-01-372-6031, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 3 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
NSN4820-01-372-6031
Primary Part Number639AS9141
Item NameValve,float
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Furnished Items and Quantity1 FILTER
Media for Which DesignedLIQUID SINGLE RESPONSE
Valve Operation MethodAUTOMATIC
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
639AS9141 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (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 4820-01-372-6031?

NSN 4820-01-372-6031 is a Valve,float, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-372-6031?

NSN 4820-01-372-6031 has 1 manufacturer part number on file: 639AS9141 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What are the specifications of 639AS9141?

Key specifications for 639AS9141: Furnished Items and Quantity: 1 FILTER; Media for Which Designed: LIQUID SINGLE RESPONSE; Valve Operation Method: AUTOMATIC. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-372-6031 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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