PartsTable TECHNICAL DATA SHEET

NSN 4820-01-178-6447Government record, cited

Disk, Valve4820-01-178-6447

NSN 4820-01-178-6447 · NIIN 011786447 · Part number B48517MFV

Hunt Valve Company, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 11859

Government record, cited

NSN 4820-01-178-6447 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-178-6447. Manufacturer of record part number: B48517MFV.

Also searched as 4820-01-178-6447 · 4820011786447 · NIIN 011786447 · 01-178-6447 · FSC 4820 Valves, Nonpowered · CAGE 11859 · B48517MFV · B48517MFD

Nearby stock numbers ← 4820-01-178-6438 Seat, Valve · 4820-01-178-6475 →

4820-01-178-6447 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Outside Diameter: 3.946 INCHES NOMINAL IN
Inside Diameter: 2.938 INCHES NOMINAL IN
Material: NICKEL ALLOY
1 manufacturer part number on file
Manufacturer of record: Hunt Valve Company, Inc.

Identification

NSN: 4820-01-178-6447
NIIN: 011786447
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B48517MFV
Manufacturer: Hunt Valve Company, Inc.

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-178-6447, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-178-6447
Primary Part Number	B48517MFV
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Hunt Valve Company, Inc.
Status	ACTIVE
Outside Diameter	3.946 INCHES NOMINAL IN
Inside Diameter	2.938 INCHES NOMINAL IN
Material	NICKEL ALLOY

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
B48517MFV PRIMARY	Hunt Valve Company, Inc. (USA)

Reference documents

Reference	Meaning
B48517MFV	3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics
B48517MFD	5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics

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 4820-01-178-6447?

NSN 4820-01-178-6447 is a Disk,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-178-6447?

NSN 4820-01-178-6447 has 1 manufacturer part number on file: B48517MFV (Hunt Valve Company, Inc.).

What are the specifications of B48517MFV?

Key specifications for B48517MFV: Overall Height: 3.875 INCHES NOMINAL IN; Outside Diameter: 3.946 INCHES NOMINAL IN; Inside Diameter: 2.938 INCHES NOMINAL IN; Material: NICKEL ALLOY. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-178-6447 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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