NSN 4820-01-384-4780 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-384-4780. Manufacturer of record part number: L50600-3.
Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which Designed: AIR SINGLE RESPONSE
2 manufacturer part numbers on file
Manufacturer of record: Lourdes Industries, Inc.
Identification
NSN: 4820-01-384-4780
NIIN: 013844780
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: L50600-3
Manufacturer: Lourdes Industries, Inc.
General Description
The Valve,check, cataloged under National Stock Number 4820-01-384-4780, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lourdes Industries, 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.
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 4820-01-384-4780?
NSN 4820-01-384-4780 is a Valve,check, manufactured by Lourdes Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-384-4780?
NSN 4820-01-384-4780 has 2 manufacturer part numbers on file: L50600-3 (Lourdes Industries, Inc.), A55E9250-3 (Northrop Grumman Systems Corporation).
What are the specifications of L50600-3?
Key specifications for L50600-3: Nominal Length: 5.100 INCHES ALL ENDS IN; Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF; Media for Which Designed: AIR SINGLE RESPONSE; End Item Identification: F14 ACFT. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-384-4780 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.