Piston, Valve4820-01-487-1104

NSN 4820-01-487-1104 · NIIN 014871104 · Part number 182979-001

Automatic Switch Company Dba Asco · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 04845

Government record, cited

NSN 4820-01-487-1104 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-487-1104. Manufacturer of record part number: 182979-001.

Also searched as 4820-01-487-1104 · 4820014871104 · NIIN 014871104 · 01-487-1104 · FSC 4820 Valves, Nonpowered · CAGE 04845 · 182979-001 · AV 262534-1 ITEM 58

Nearby stock numbers ← 4820-01-487-1095 Stem, Fluid Valve · 4820-01-487-1140 Float, Valve →

4820-01-487-1104 — Valves, Nonpowered

Features

Piston,valve — FSC 4820
Valve Type for Which Designed: DIRECTIONAL CONTROL LINEAR
Valve Model Number for Which Designed: AV262534
Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed: 1.500 INCHES IN
Valve Design Control Activity: 04845
Material: NICKEL ALLOY
2 manufacturer part numbers on file

Identification

NSN: 4820-01-487-1104
NIIN: 014871104
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 182979-001
Manufacturer: Automatic Switch Company Dba Asco

General Description

The Piston,valve, cataloged under National Stock Number 4820-01-487-1104, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-487-1104
Primary Part Number	182979-001
Item Name	Piston,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Automatic Switch Company Dba Asco
Status	ACTIVE
Valve Type for Which Designed	DIRECTIONAL CONTROL LINEAR
Valve Model Number for Which Designed	AV262534
Material Document and Classification	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed	1.500 INCHES IN
Valve Design Control Activity	04845
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
AV 262534-1 ITEM 58	Automatic Switch Company Dba Asco (USA)
182979-001 PRIMARY	Automatic Switch Company Dba Asco (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 4820-01-487-1104?

NSN 4820-01-487-1104 is a Piston,valve, manufactured by Automatic Switch Company Dba Asco, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-487-1104?

NSN 4820-01-487-1104 has 2 manufacturer part numbers on file: AV 262534-1 ITEM 58 (Automatic Switch Company Dba Asco), 182979-001 (Automatic Switch Company Dba Asco).

What are the specifications of 182979-001?

Key specifications for 182979-001: Valve Type for Which Designed: DIRECTIONAL CONTROL LINEAR; Valve Model Number for Which Designed: AV262534; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 1.500 INCHES IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-487-1104 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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