Valve, Check4820-01-145-7673

NSN 4820-01-145-7673 · NIIN 011457673 · Part number HSC-1601

Hydro-Stack Mfg Corp Sub of the Oilgear Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 59279

Government record, cited

NSN 4820-01-145-7673 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-145-7673. Manufacturer of record part number: HSC-1601.

Also searched as 4820-01-145-7673 · 4820011457673 · NIIN 011457673 · 01-145-7673 · FSC 4820 Valves, Nonpowered · CAGE 59279 · HSC-1601 · L400186HS

Nearby stock numbers ← 4820-01-145-7672 Valve, Safety Relief · 4820-01-145-7674 →

4820-01-145-7673 — Valves, Nonpowered

Features

Valve,check — FSC 4820
Flow Control Device: DISK
Mounting Position: HORIZONTAL OR VERTICAL
Connection Type: THREADED EXTERNAL TUBE ALL ENDS
Style Designator: SCREW-IN CARTRIDGE
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 1.625 INCHES ALL ENDS IN
Thread Class: 2B ALL ENDS

Identification

NSN: 4820-01-145-7673
NIIN: 011457673
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: HSC-1601
Manufacturer: Hydro-Stack Mfg Corp Sub of the Oilgear Co

General Description

The Valve,check, cataloged under National Stock Number 4820-01-145-7673, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydro-Stack Mfg Corp Sub of the Oilgear Co. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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	4820-01-145-7673
Primary Part Number	HSC-1601
Item Name	Valve,check
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hydro-Stack Mfg Corp Sub of the Oilgear Co
Status	ACTIVE
Flow Control Device	DISK
Mounting Position	HORIZONTAL OR VERTICAL
Connection Type	THREADED EXTERNAL TUBE ALL ENDS
Style Designator	SCREW-IN CARTRIDGE
Thread Direction	RIGHT-HAND ALL ENDS
Nominal Thread Size	1.625 INCHES ALL ENDS IN
Thread Class	2B ALL ENDS
Thread Quantity Per Inch	12 ALL ENDS
Material	STEEL CORROSION RESISTING BODY
Thread Series Designator	UN 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
L400186HS	Hydro-Stack Mfg Corp Sub of the Oilgear Co (USA)
HSC-1601 PRIMARY	Hydro-Stack Mfg Corp Sub of the Oilgear Co (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 4820-01-145-7673?

NSN 4820-01-145-7673 is a Valve,check, manufactured by Hydro-Stack Mfg Corp Sub of the Oilgear Co, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-145-7673?

NSN 4820-01-145-7673 has 2 manufacturer part numbers on file: L400186HS (Hydro-Stack Mfg Corp Sub of the Oilgear Co), HSC-1601 (Hydro-Stack Mfg Corp Sub of the Oilgear Co).

What are the specifications of HSC-1601?

Key specifications for HSC-1601: Flow Control Device: DISK; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: SCREW-IN CARTRIDGE. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-145-7673 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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