NSN 4820-01-440-4398 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-440-4398. Manufacturer of record part number: 3CXV00.
Also searched as4820-01-440-4398 ·
4820014404398 ·
NIIN 014404398 ·
01-440-4398 ·
FSC 4820 Valves, Nonpowered · CAGE 0GRW8 · 3CXV00
Operating Pressure: 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 0.375 INCHES FIRST END IN
Identification
NSN: 4820-01-440-4398
NIIN: 014404398
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3CXV00
Manufacturer: Hydroseal Valve Co Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-440-4398, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydroseal Valve Co Inc. Government technical data includes 10 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
Parameter
Value
NSN
4820-01-440-4398
Primary Part Number
3CXV00
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Hydroseal Valve Co Inc
Status
ACTIVE
Flow Control Device
POPPET
Connection Style
ERR-090 FIRST END
Connection Type
THREADED INTERNAL PIPE FIRST END
Style Designator
ANGLE
Operating Pressure
3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
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 4820-01-440-4398?
NSN 4820-01-440-4398 is a Valve,safety Relief, manufactured by Hydroseal Valve Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-440-4398?
NSN 4820-01-440-4398 has 1 manufacturer part number on file: 3CXV00 (Hydroseal Valve Co Inc).
What are the specifications of 3CXV00?
Key specifications for 3CXV00: Flow Control Device: POPPET; Connection Style: ERR-090 FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END; Style Designator: ANGLE. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-440-4398 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.