PartsTable TECHNICAL DATA SHEET

NSN 4820-00-386-0831Government record, cited

Disk, Valve4820-00-386-0831

NSN 4820-00-386-0831 · NIIN 003860831 · Part number 3261809

Hatch & Kirk, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55380

Government record, cited

NSN 4820-00-386-0831 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-386-0831. Manufacturer of record part number: 3261809.

Also searched as 4820-00-386-0831 · 4820003860831 · NIIN 003860831 · 00-386-0831 · FSC 4820 Valves, Nonpowered · CAGE 55380 · 3261809

Nearby stock numbers ← 4820-00-386-0809 Disk, Valve · 4820-00-386-1781 →

4820-00-386-0831 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Shank Diameter: 0.495 INCHES NOMINAL IN
Flange Diameter: 0.495 INCHES NOMINAL IN
Style Designator: POPPET
Seat Angle: 45.0 DEGREES NOMINAL
Material: STEEL
1 manufacturer part number on file
Manufacturer of record: Hatch & Kirk, Inc.

Identification

NSN: 4820-00-386-0831
NIIN: 003860831
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3261809
Manufacturer: Hatch & Kirk, Inc.

General Description

The Disk,valve, cataloged under National Stock Number 4820-00-386-0831, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-00-386-0831
Primary Part Number	3261809
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hatch & Kirk, Inc.
Status	ACTIVE
Shank Diameter	0.495 INCHES NOMINAL IN
Flange Diameter	0.495 INCHES NOMINAL IN
Style Designator	POPPET
Seat Angle	45.0 DEGREES NOMINAL
Material	STEEL

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
3261809 PRIMARY	Hatch & Kirk, Inc. (USA)

Reference documents

Reference	Meaning
3261809	5/9 Secondary reference General Motors Corp Electro-Motive Div

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 4820-00-386-0831?

NSN 4820-00-386-0831 is a Disk,valve, manufactured by Hatch & Kirk, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-386-0831?

NSN 4820-00-386-0831 has 1 manufacturer part number on file: 3261809 (Hatch & Kirk, Inc.).

What are the specifications of 3261809?

Key specifications for 3261809: Shank Diameter: 0.495 INCHES NOMINAL IN; Flange Diameter: 0.495 INCHES NOMINAL IN; Overall Height: 0.754 INCHES NOMINAL IN; Style Designator: POPPET. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-386-0831 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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