PartsTable TECHNICAL DATA SHEET

NSN 4820-01-192-4715Government record, cited

Disk, Valve4820-01-192-4715

NSN 4820-01-192-4715 · NIIN 011924715 · Part number 4549B

Howell Laboratories Inc Dba Howell Laboratories Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 22501

Government record, cited

NSN 4820-01-192-4715 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-192-4715. Manufacturer of record part number: 4549B.

Also searched as 4820-01-192-4715 · 4820011924715 · NIIN 011924715 · 01-192-4715 · FSC 4820 Valves, Nonpowered · CAGE 22501 · 4549B · 4820PL1328432

Nearby stock numbers ← 4820-01-192-4714 · 4820-01-192-4974 Valve, Gate →

4820-01-192-4715 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Outside Diameter: 0.700 INCHES NOMINAL IN
Inside Diameter: 0.164 INCHES NOMINAL IN
Material: COPPER ALLOY
1 manufacturer part number on file
Manufacturer of record: Howell Laboratories Inc Dba Howell Laboratories Inc

Identification

NSN: 4820-01-192-4715
NIIN: 011924715
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4549B
Manufacturer: Howell Laboratories Inc Dba Howell Laboratories Inc

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-192-4715, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-192-4715
Primary Part Number	4549B
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Howell Laboratories Inc Dba Howell Laboratories Inc
Status	ACTIVE
Outside Diameter	0.700 INCHES NOMINAL IN
Inside Diameter	0.164 INCHES NOMINAL IN
Material	COPPER 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
4549B PRIMARY	Howell Laboratories Inc Dba Howell Laboratories Inc (USA)

Reference documents

Reference	Meaning
4820PL1328432	6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index

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 4820-01-192-4715?

NSN 4820-01-192-4715 is a Disk,valve, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-192-4715?

NSN 4820-01-192-4715 has 1 manufacturer part number on file: 4549B (Howell Laboratories Inc Dba Howell Laboratories Inc).

What are the specifications of 4549B?

Key specifications for 4549B: Overall Height: 0.463 INCHES NOMINAL IN; Outside Diameter: 0.700 INCHES NOMINAL IN; Inside Diameter: 0.164 INCHES NOMINAL IN; Material: COPPER ALLOY. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-192-4715 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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