Diaphragm Set, Packless Valve4820-01-488-4181

NSN 4820-01-488-4181 · NIIN 014884181 · Part number AP1478

Mission Systems Orchard Park Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04577

Government record, cited

NSN 4820-01-488-4181 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-488-4181. Manufacturer of record part number: AP1478.

Also searched as 4820-01-488-4181 · 4820014884181 · NIIN 014884181 · 01-488-4181 · FSC 4820 Valves, Nonpowered · CAGE 04577 · AP1478

Nearby stock numbers ← 4820-01-488-4179 · 4820-01-488-4182 Diaphragm Set, Packless Valve →

4820-01-488-4181 — Valves, Nonpowered

Features

Diaphragm Set,packless Valve — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Mission Systems Orchard Park Inc

Identification

NSN: 4820-01-488-4181
NIIN: 014884181
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: AP1478
Manufacturer: Mission Systems Orchard Park Inc

General Description

The Diaphragm Set,packless Valve, cataloged under National Stock Number 4820-01-488-4181, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mission Systems Orchard Park Inc. 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	4820-01-488-4181
Primary Part Number	AP1478
Item Name	Diaphragm Set,packless Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Mission Systems Orchard Park Inc
Status	ACTIVE

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
AP1478 PRIMARY	Mission Systems Orchard Park 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 4820-01-488-4181?

NSN 4820-01-488-4181 is a Diaphragm Set,packless Valve, manufactured by Mission Systems Orchard Park Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-488-4181?

NSN 4820-01-488-4181 has 1 manufacturer part number on file: AP1478 (Mission Systems Orchard Park Inc).

What are the specifications of AP1478?

Key specifications for AP1478: End Item Identification: USED ON CLEARANCE DIVERS BREATHING APPARATUS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-488-4181 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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