Valve, Check4820-01-660-6477

NSN 4820-01-660-6477 · NIIN 016606477

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-660-6477 · 4820016606477 · NIIN 016606477 · 01-660-6477 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-01-660-6475 Divider, Valve Flow · 4820-01-660-6506 Valve, Regulating, Fluid Pressure →

4820-01-660-6477 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: BALL
Style Designator: SCREW-IN CARTRIDGE
Maximum Operating Temp: 250.0 FAHRENHEIT FIRST RESPONSE DEGF
Surface Treatment: ZINC
Material: ALUMINUM BODY
Opening Pressure Setting: 207.0 BAR
Valve Operation Method: AUTOMATIC

Identification

NSN: 4820-01-660-6477
NIIN: 016606477
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Valve,check, cataloged under National Stock Number 4820-01-660-6477, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-660-6477
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Flow Control Device	BALL
Style Designator	SCREW-IN CARTRIDGE
Maximum Operating Temp	250.0 FAHRENHEIT FIRST RESPONSE DEGF
Surface Treatment	ZINC
Material	ALUMINUM BODY
Opening Pressure Setting	207.0 BAR
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

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

Reference documents

Reference	Meaning
CPD084PV-A6T	3/9 Design control — primary reference Parker-Hannifin Corporation Dba Hydraulics Group R&d Tcs Team

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 4820-01-660-6477?

NSN 4820-01-660-6477 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-660-6477?

Key specifications for 4820-01-660-6477: Flow Control Device: BALL; Style Designator: SCREW-IN CARTRIDGE; Maximum Operating Temp: 250.0 FAHRENHEIT FIRST RESPONSE DEGF; Special Features: ALL EXTERNAL PARTS ZINC COATED,CARTAGE MATERIAL:STEEL,SEAL MATERIAL:FLUOROCARBON,BODY MATERIAL:ALUMINUM,APPROX WEIGHT 0.11LBS,CAVITY C08-4,FLUID COMPATIBLLITY:MINERAL-BASED OR SYNTHETIC WITH LUBRICATING PROPERTIES AT VISCOSITIES OF 45 TO 2000 SSU(6-420CST),PILOT RATIO 3:1,OPERATING TEMP -40 DEGREES FAHRENHEIT TO +200 DEGREES FAHRENHEIT LBS. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-660-6477 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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