NSN 4820-01-356-5558 · NIIN 013565558 · Part number I-1284-W ASSY I-1284-W21
Schneider Electric Systems Usa Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 73475
Government record, cited
NSN 4820-01-356-5558 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-356-5558. Manufacturer of record part number: I-1284-W ASSY I-1284-W21.
Manufacturer of record: Schneider Electric Systems Usa Inc
Identification
NSN: 4820-01-356-5558
NIIN: 013565558
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: I-1284-W ASSY I-1284-W21
Manufacturer: Schneider Electric Systems Usa Inc
General Description
The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-356-5558, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Schneider Electric Systems Usa Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,regulating,temperature
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Schneider Electric Systems Usa Inc (CAGE 73475)
Technical Specifications
Parameter
Value
NSN
4820-01-356-5558
Primary Part Number
I-1284-W ASSY I-1284-W21
Item Name
Valve,regulating,temperature
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Schneider Electric Systems Usa 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
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-432-595030559-E1POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Schneider Electric Systems Usa Inc
4820-01-432-5976I-1284-W 11POSSIBLE MATCH
VALVE,REGULATING,TEMPERATURE
Possible match (shared part number)Schneider Electric Systems Usa Inc
4820-01-432-842082159-C2POSSIBLE MATCH
POPPET AND PIPE SUBASSEMBLY
Possible match (shared part number)Schneider Electric Systems Usa Inc
4820-01-432-842382161-S11POSSIBLE MATCH
POPPET AND STEM ASSEMBLY
Possible match (shared part number)Schneider Electric Systems Usa Inc
4820-01-439-456930565-C1POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Schneider Electric Systems Usa Inc
NSN 4820-01-356-5558 is a Valve,regulating,temperature, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-356-5558?
NSN 4820-01-356-5558 has 2 manufacturer part numbers on file: I-1284-W21 (Schneider Electric Systems Usa Inc), I-1284-W ASSY I-1284-W21 (Schneider Electric Systems Usa Inc).
What NSN replaces 4820-01-356-5558?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-432-5950, 4820-01-432-5976, 4820-01-432-8420. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-356-5558 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.