PartsTable TECHNICAL DATA SHEET

NSN 4820-01-306-8374Government record, cited

Valve, Check4820-01-306-8374

NSN 4820-01-306-8374 · NIIN 013068374 · Part number EPA21000-232

Naval Group Site De Brest · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE F3014

Government record, cited

NSN 4820-01-306-8374 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-306-8374. Manufacturer of record part number: EPA21000-232.

Also searched as 4820-01-306-8374 · 4820013068374 · NIIN 013068374 · 01-306-8374 · FSC 4820 Valves, Nonpowered · CAGE F3014 · EPA21000-232 · 510793-3-031

Nearby stock numbers ← 4820-01-306-7839 Disk, Valve · 4820-01-306-8430 →

4820-01-306-8374 — Valves, Nonpowered

Features

Valve,check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Naval Group Site De Brest

Identification

NSN: 4820-01-306-8374
NIIN: 013068374
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: EPA21000-232
Manufacturer: Naval Group Site De Brest

General Description

The Valve,check, cataloged under National Stock Number 4820-01-306-8374, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Group Site De Brest. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-306-8374
Primary Part Number	EPA21000-232
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Naval Group Site De Brest
Status	ACTIVE

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
EPA21000-232	Naval Group Site De Brest (FRA)

Reference documents

Reference	Meaning
510793-3-031	3/2 Design control — primary reference U.S. Government activity

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 4820-01-306-8374?

NSN 4820-01-306-8374 is a Valve,check, manufactured by Naval Group Site De Brest, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-306-8374?

NSN 4820-01-306-8374 has 1 manufacturer part number on file: EPA21000-232 (Naval Group Site De Brest).

What are the specifications of EPA21000-232?

Key specifications for EPA21000-232: End Item Identification: AIR LAUNCH AND RECOVERY EQPT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-306-8374 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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