Ball, Valve, Ported4820-01-151-3640

NSN 4820-01-151-3640 · NIIN 011513640 · Part number D-1555-20

Down East, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 55650

Government record, cited

NSN 4820-01-151-3640 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-151-3640. Manufacturer of record part number: D-1555-20.

Also searched as 4820-01-151-3640 · 4820011513640 · NIIN 011513640 · 01-151-3640 · FSC 4820 Valves, Nonpowered · CAGE 55650 · D-1555-20

Nearby stock numbers ← 4820-01-151-3639 Valve, Globe · 4820-01-151-3644 →

4820-01-151-3640 — Valves, Nonpowered

Features

Ball,valve,ported — FSC 4820
Material: COPPER ALLOY
1 manufacturer part number on file
Manufacturer of record: Down East, Inc.

Identification

NSN: 4820-01-151-3640
NIIN: 011513640
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: D-1555-20
Manufacturer: Down East, Inc.

General Description

The Ball,valve,ported, cataloged under National Stock Number 4820-01-151-3640, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Down East, Inc.. Government technical data includes 1 specification, 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	4820-01-151-3640
Primary Part Number	D-1555-20
Item Name	Ball,valve,ported
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Down East, Inc.
Status	ACTIVE
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
D-1555-20 PRIMARY	Down East, Inc. (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 4820-01-151-3640?

NSN 4820-01-151-3640 is a Ball,valve,ported, manufactured by Down East, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-151-3640?

NSN 4820-01-151-3640 has 1 manufacturer part number on file: D-1555-20 (Down East, Inc.).

What are the specifications of D-1555-20?

Key specifications for D-1555-20: Material: COPPER ALLOY. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-151-3640 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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