Diaphragm, Valve, Flat4820-01-509-8901

NSN 4820-01-509-8901 · NIIN 015098901

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-509-8901 · 4820015098901 · NIIN 015098901 · 01-509-8901 · FSC 4820 Valves, Nonpowered · 210-75-2-06422-00 · 1000LP ITEM NO.20

Nearby stock numbers ← 4820-01-509-8898 Piston, Valve · 4820-01-509-8906 Valve, Regulating, Fluid Pressure →

4820-01-509-8901 — Valves, Nonpowered

Features

Diaphragm,valve,flat — FSC 4820
Pressure Rating: 30.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Temp Rating: -20.0 FAHRENHEIT MINIMUM AND 600.0 FAHRENHEIT MAXIMUM DEGF
Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
Material: STEEL COMP 302

Identification

NSN: 4820-01-509-8901
NIIN: 015098901
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-509-8901, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4820-01-509-8901
Item Name	Diaphragm,valve,flat
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Pressure Rating	30.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Temp Rating	-20.0 FAHRENHEIT MINIMUM AND 600.0 FAHRENHEIT MAXIMUM DEGF
Material Document and Classification	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
Material	STEEL COMP 302

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
210-75-2-06422-00	3/2 Design control — primary reference U.S. Government activity
1000LP ITEM NO.20	5/2 Secondary 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 4820-01-509-8901?

NSN 4820-01-509-8901 is a Diaphragm,valve,flat, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-509-8901?

Key specifications for 4820-01-509-8901: Pressure Rating: 30.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Temp Rating: -20.0 FAHRENHEIT MINIMUM AND 600.0 FAHRENHEIT MAXIMUM DEGF; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE; End Item Identification: E/I:1000LP PRESSURE REDUCING REGULATOR. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-509-8901 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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