Diaphragm, Valve, Flat4820-01-183-0571

NSN 4820-01-183-0571 · NIIN 011830571

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-183-0571 · 4820011830571 · NIIN 011830571 · 01-183-0571 · FSC 4820 Valves, Nonpowered · B5635-4 · 18005-62-00-04 · 18005-62-00-04 · 18005-62-00-04

Nearby stock numbers ← 4820-01-183-0046 Valve, Bleeder, Hydraulic System · 4820-01-183-0583 Ball, Valve, Ported →

4820-01-183-0571 — Valves, Nonpowered

Features

Diaphragm,valve,flat — FSC 4820
Outside Diameter: 6.000 INCHES NOMINAL IN
Style Designator: FLAT
Material Thickness: 0.040 INCHES NOMINAL IN
Bolt Hole Quantity: 8
Bolt Circle Diameter: 5.575 INCHES NOMINAL IN
Center Hole Diameter: 0.350 INCHES NOMINAL IN
Material: RUBBER

Identification

NSN: 4820-01-183-0571
NIIN: 011830571
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-183-0571, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-183-0571
Item Name	Diaphragm,valve,flat
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Outside Diameter	6.000 INCHES NOMINAL IN
Style Designator	FLAT
Material Thickness	0.040 INCHES NOMINAL IN
Bolt Hole Quantity	8
Bolt Circle Diameter	5.575 INCHES NOMINAL IN
Center Hole Diameter	0.350 INCHES NOMINAL IN
Material	RUBBER
Hole Diameter	0.280 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
B5635-4	C/1 Advisory reference — outside the item-of-supply concept Snap-Tite Inc Dba Snap Tite Solenoid Valve Div
18005-62-00-04	3/9 Design control — primary reference Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division
18005-62-00-04	5/9 Secondary reference Snap-Tite Inc Dba Snap Tite Solenoid Valve Div
18005-62-00-04	C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division

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 4820-01-183-0571?

NSN 4820-01-183-0571 is a Diaphragm,valve,flat, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-183-0571?

Key specifications for 4820-01-183-0571: Outside Diameter: 6.000 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.040 INCHES NOMINAL IN; Bolt Hole Quantity: 8. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-183-0571 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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