PartsTable TECHNICAL DATA SHEET

NSN 4820-01-007-5444Government record, cited

Diaphragm, Valve, Flat4820-01-007-5444

NSN 4820-01-007-5444 · NIIN 010075444 · Part number 1R4818PC48-8HOLE

Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 52406

Government record, cited

NSN 4820-01-007-5444 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-007-5444. Manufacturer of record part number: 1R4818PC48-8HOLE.

Also searched as 4820-01-007-5444 · 4820010075444 · NIIN 010075444 · 01-007-5444 · FSC 4820 Valves, Nonpowered · CAGE 52406 · 1R4818PC48-8HOLE · 1R4818PC48-8H0L

Nearby stock numbers ← 4820-01-007-5430 · 4820-01-007-5915 Poppet Assembly →

4820-01-007-5444 — Valves, Nonpowered

Features

Diaphragm,valve,flat — FSC 4820
Outside Diameter: 7.188 INCHES NOMINAL IN
Style Designator: FLAT
Material Thickness: 0.108 INCHES NOMINAL IN
Bolt Hole Quantity: 8
Bolt Circle Diameter: 6.420 INCHES NOMINAL IN
Center Hole Diameter: 0.380 INCHES NOMINAL IN
Material: RUBBER SYNTHETIC

Identification

NSN: 4820-01-007-5444
NIIN: 010075444
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1R4818PC48-8HOLE
Manufacturer: Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company

General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-007-5444, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-007-5444
Primary Part Number	1R4818PC48-8HOLE
Item Name	Diaphragm,valve,flat
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company
Status	ACTIVE
Outside Diameter	7.188 INCHES NOMINAL IN
Style Designator	FLAT
Material Thickness	0.108 INCHES NOMINAL IN
Bolt Hole Quantity	8
Bolt Circle Diameter	6.420 INCHES NOMINAL IN
Center Hole Diameter	0.380 INCHES NOMINAL IN
Material	RUBBER SYNTHETIC
Hole Diameter	0.445 INCHES NOMINAL IN

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
1R4818PC48-8HOLE PRIMARY	Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company (USA)

Reference documents

Reference	Meaning
1R4818PC48-8H0L	C/1 Advisory reference — outside the item-of-supply concept Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company

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 4820-01-007-5444?

NSN 4820-01-007-5444 is a Diaphragm,valve,flat, manufactured by Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-007-5444?

NSN 4820-01-007-5444 has 1 manufacturer part number on file: 1R4818PC48-8HOLE (Ruggles-Klingemann Mfg Co Dba the Ruggles-Klingemann Company).

What are the specifications of 1R4818PC48-8HOLE?

Key specifications for 1R4818PC48-8HOLE: Outside Diameter: 7.188 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.108 INCHES NOMINAL IN; Bolt Hole Quantity: 8. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-007-5444 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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