Valve, Check4820-01-660-7831

NSN 4820-01-660-7831 · NIIN 016607831 · Part number 08R1664D0X

Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 51663

Government record, cited

NSN 4820-01-660-7831 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-660-7831. Manufacturer of record part number: 08R1664D0X.

Also searched as 4820-01-660-7831 · 4820016607831 · NIIN 016607831 · 01-660-7831 · FSC 4820 Valves, Nonpowered · CAGE 51663 · 08R1664D0X

Nearby stock numbers ← 4820-01-660-7828 Retainer, Seat, Valve · 4820-01-660-7949 Valve, Regulating, Fluid Pressure →

4820-01-660-7831 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Bolt Circle Nominal Diameter: 11.66 INCHES ALL ENDS IN
Connection Type: FLANGE ALL ENDS
Style Designator: STRAIGHT THRU
Bolt Hole Nominal Diameter: 0.91 INCHES ALL ENDS IN
Nominal Outside Diameter: 14.50 INCHES ALL ENDS IN
Mounting Facility: WAFER

Identification

NSN: 4820-01-660-7831
NIIN: 016607831
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 08R1664D0X
Manufacturer: Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec

General Description

The Valve,check, cataloged under National Stock Number 4820-01-660-7831, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec. Government technical data includes 12 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	4820-01-660-7831
Primary Part Number	08R1664D0X
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec
Status	ACTIVE
Flow Control Device	DISK
Bolt Circle Nominal Diameter	11.66 INCHES ALL ENDS IN
Connection Type	FLANGE ALL ENDS
Style Designator	STRAIGHT THRU
Bolt Hole Nominal Diameter	0.91 INCHES ALL ENDS IN
Nominal Outside Diameter	14.50 INCHES ALL ENDS IN
Mounting Facility	WAFER
Bolt Hole Quantity	4 ALL ENDS
Face to Face Distance	3.88 INCHES IN
Material	ALUMINUM ALLOY FLOW CONTROL DEVICE
Material	IRON CAST 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
08R1664D0X PRIMARY	Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec (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 4820-01-660-7831?

NSN 4820-01-660-7831 is a Valve,check, manufactured by Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-660-7831?

NSN 4820-01-660-7831 has 1 manufacturer part number on file: 08R1664D0X (Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec).

What are the specifications of 08R1664D0X?

Key specifications for 08R1664D0X: Flow Control Device: DISK; Bolt Circle Nominal Diameter: 11.66 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-660-7831 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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