Valve, Check4820-01-187-3946

NSN 4820-01-187-3946 · NIIN 011873946 · Part number L53300-24FFK

Lourdes Industries, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 01178

Government record, cited

NSN 4820-01-187-3946 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-187-3946. Manufacturer of record part number: L53300-24FFK.

Also searched as 4820-01-187-3946 · 4820011873946 · NIIN 011873946 · 01-187-3946 · FSC 4820 Valves, Nonpowered · CAGE 01178 · L53300-24FFK

Nearby stock numbers ← 4820-01-187-3719 Valve, Butterfly · 4820-01-187-4020 →

4820-01-187-3946 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
1 manufacturer part number on file
Manufacturer of record: Lourdes Industries, Inc.

Identification

NSN: 4820-01-187-3946
NIIN: 011873946
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: L53300-24FFK
Manufacturer: Lourdes Industries, Inc.

General Description

The Valve,check, cataloged under National Stock Number 4820-01-187-3946, 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 1 specification, 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	4820-01-187-3946
Primary Part Number	L53300-24FFK
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Lourdes Industries, Inc.
Status	ACTIVE
Flow Control Device	DISK

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
L53300-24FFK PRIMARY	Lourdes Industries, Inc. (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 4820-01-187-3946?

NSN 4820-01-187-3946 is a Valve,check, manufactured by Lourdes Industries, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-187-3946?

NSN 4820-01-187-3946 has 1 manufacturer part number on file: L53300-24FFK (Lourdes Industries, Inc.).

What are the specifications of L53300-24FFK?

Key specifications for L53300-24FFK: Flow Control Device: DISK. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-187-3946 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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