Diaphragm, Actuator Valve, Special4820-01-171-4511

NSN 4820-01-171-4511 · NIIN 011714511

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-171-4511 · 4820011714511 · NIIN 011714511 · 01-171-4511 · FSC 4820 Valves, Nonpowered · 000346 · 3212 · 3212 PIECE 2

Nearby stock numbers ← 4820-01-171-4499 Disk, Valve · 4820-01-171-4524 Ball, Valve, Ported →

4820-01-171-4511 — Valves, Nonpowered

Features

Diaphragm,actuator Valve,special — FSC 4820
Radius: 1.125 INCHES NOMINAL IN
Style Designator: SPECIAL SHAPED
Material Thickness: 0.180 INCHES NOMINAL IN
Bolt Hole Quantity: 4
Center to Center Distance Between Bolt Holes Along Length: 1.859 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Width: 2.170 INCHES NOMINAL IN
Center Hole Diameter: 0.115 INCHES NOMINAL IN

Identification

NSN: 4820-01-171-4511
NIIN: 011714511
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-171-4511, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-171-4511
Item Name	Diaphragm,actuator Valve,special
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Radius	1.125 INCHES NOMINAL IN
Style Designator	SPECIAL SHAPED
Material Thickness	0.180 INCHES NOMINAL IN
Bolt Hole Quantity	4
Center to Center Distance Between Bolt Holes Along Length	1.859 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Width	2.170 INCHES NOMINAL IN
Center Hole Diameter	0.115 INCHES NOMINAL IN
Outside Corner Radius	0.359 INCHES NOMINAL IN
Material	RUBBER SYNTHETIC
Hole Diameter	0.290 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
000346	3/9 Design control — primary reference Itt Fluid Technology Corp Itt Engineered Valves Div
3212	D/9 Drawing number reference only Itt Fluid Technology Corp Itt Engineered Valves Div
3212 PIECE 2	5/9 Secondary reference Itt Fluid Technology Corp Itt Engineered Valves Div

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 4820-01-171-4511?

NSN 4820-01-171-4511 is a Diaphragm,actuator Valve,special, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-171-4511?

Key specifications for 4820-01-171-4511: Overall Height: 0.365 INCHES NOMINAL IN; Radius: 1.125 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED; Overall Length: 2.859 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-171-4511 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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