PartsTable TECHNICAL DATA SHEET

NSN 4820-01-301-1538Government record, cited

Diaphragm, Valve, Flat4820-01-301-1538

NSN 4820-01-301-1538 · NIIN 013011538 · Part number 183011007

Imi Cornelius Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 51267

Government record, cited

NSN 4820-01-301-1538 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-301-1538. Manufacturer of record part number: 183011007.

Also searched as 4820-01-301-1538 · 4820013011538 · NIIN 013011538 · 01-301-1538 · FSC 4820 Valves, Nonpowered · CAGE 51267 · 183011007 · 183011-000

Nearby stock numbers ← 4820-01-301-1525 Piston, Valve · 4820-01-301-1539 Diaphragm, Valve, Flat →

4820-01-301-1538 — Valves, Nonpowered

Features

Diaphragm,valve,flat — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Imi Cornelius Inc.

Identification

NSN: 4820-01-301-1538
NIIN: 013011538
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 183011007
Manufacturer: Imi Cornelius Inc.

General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-301-1538, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Imi Cornelius Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Diaphragm,valve,flat
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Cornelius France (CAGE F9596); Imi Cornelius Inc. (CAGE 51267)

Technical Specifications

Parameter	Value
NSN	4820-01-301-1538
Primary Part Number	183011007
Item Name	Diaphragm,valve,flat
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Imi Cornelius Inc.
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
183011007	Cornelius France (FRA)
183011007 PRIMARY	Imi Cornelius Inc. (USA)

Reference documents

Reference	Meaning
183011-000	5/9 Secondary reference Imi Cornelius Inc.

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 4820-01-301-1538?

NSN 4820-01-301-1538 is a Diaphragm,valve,flat, manufactured by Imi Cornelius Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-301-1538?

NSN 4820-01-301-1538 has 2 manufacturer part numbers on file: 183011007 (Cornelius France), 183011007 (Imi Cornelius Inc.).

Is NSN 4820-01-301-1538 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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