Valve, Check4820-01-660-6581

NSN 4820-01-660-6581 · NIIN 016606581 · Part number PWA-L1466

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 09990

Government record, cited

NSN 4820-01-660-6581 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-660-6581. Manufacturer of record part number: PWA-L1466.

Also searched as 4820-01-660-6581 · 4820016606581 · NIIN 016606581 · 01-660-6581 · FSC 4820 Valves, Nonpowered · CAGE 09990 · PWA-L1466

Nearby stock numbers ← 4820-01-660-6506 Valve, Regulating, Fluid Pressure · 4820-01-660-6630 Stave, Valve →

4820-01-660-6581 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Renewable Seat Ring Type: PRESSED-IN
Nominal Length: 41.0 MILLIMETERS ALL ENDS MM
Connection Type: UNTHREADED CARTRIDGE ALL ENDS
Operating Pressure: 10.0 BAR MAXIMUM SINGLE RESPONSE
Valve Size: 6.0 MILLIMETERS MM
Maximum Operating Temp: 70.0 CELSIUS SINGLE RESPONSE DEGC
Material: PLASTIC BODY

Identification

NSN: 4820-01-660-6581
NIIN: 016606581
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: PWA-L1466
Manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division

General Description

The Valve,check, cataloged under National Stock Number 4820-01-660-6581, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-660-6581
Primary Part Number	PWA-L1466
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Status	ACTIVE
Renewable Seat Ring Type	PRESSED-IN
Nominal Length	41.0 MILLIMETERS ALL ENDS MM
Connection Type	UNTHREADED CARTRIDGE ALL ENDS
Operating Pressure	10.0 BAR MAXIMUM SINGLE RESPONSE
Valve Size	6.0 MILLIMETERS MM
Maximum Operating Temp	70.0 CELSIUS SINGLE RESPONSE DEGC
Material	PLASTIC BODY
Valve Operation Method	AUTOMATIC

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
PWA-L1466 PRIMARY	Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)

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 4820-01-660-6581?

NSN 4820-01-660-6581 is a Valve,check, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-660-6581?

NSN 4820-01-660-6581 has 1 manufacturer part number on file: PWA-L1466 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

What are the specifications of PWA-L1466?

Key specifications for PWA-L1466: Renewable Seat Ring Type: PRESSED-IN; Nominal Length: 41.0 MILLIMETERS ALL ENDS MM; Connection Type: UNTHREADED CARTRIDGE ALL ENDS; Operating Pressure: 10.0 BAR MAXIMUM SINGLE RESPONSE. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-660-6581 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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