Valve, Check4820-01-365-6953

NSN 4820-01-365-6953 · NIIN 013656953 · Part number C-820-B-1

Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 05779

Government record, cited

NSN 4820-01-365-6953 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-365-6953. Manufacturer of record part number: C-820-B-1.

Also searched as 4820-01-365-6953 · 4820013656953 · NIIN 013656953 · 01-365-6953 · FSC 4820 Valves, Nonpowered · CAGE 05779 · C-820-B-1 · YMD-5650 · AMO-692 ITEM 10

Nearby stock numbers ← 4820-01-365-6952 Valve, Check · 4820-01-365-6954 Valve, Check →

4820-01-365-6953 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Nominal Thread Size: 0.750 INCHES ALL ENDS IN
Thread Series Designator: UNF ALL ENDS
Valve Operation Method: AUTOMATIC
3 manufacturer part numbers on file
Manufacturer of record: Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division

Identification

NSN: 4820-01-365-6953
NIIN: 013656953
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: C-820-B-1
Manufacturer: Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division

General Description

The Valve,check, cataloged under National Stock Number 4820-01-365-6953, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-365-6953
Primary Part Number	C-820-B-1
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
Status	ACTIVE
Flow Control Device	DISK
Nominal Thread Size	0.750 INCHES ALL ENDS IN
Thread Series Designator	UNF ALL ENDS
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
YMD-5650	Appleton Marine Inc (USA)
C-820-B-1 PRIMARY	Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division (USA)
AMO-692 ITEM 10	Appleton Marine Inc (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 4820-01-365-6953?

NSN 4820-01-365-6953 is a Valve,check, manufactured by Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-365-6953?

NSN 4820-01-365-6953 has 3 manufacturer part numbers on file: YMD-5650 (Appleton Marine Inc), C-820-B-1 (Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division), AMO-692 ITEM 10 (Appleton Marine Inc).

What are the specifications of C-820-B-1?

Key specifications for C-820-B-1: Flow Control Device: DISK; Nominal Thread Size: 0.750 INCHES ALL ENDS IN; Thread Series Designator: UNF ALL ENDS; Valve Operation Method: AUTOMATIC. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-365-6953 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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