NSN 4820-01-050-2818 · NIIN 010502818 · Part number 20194
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 15187
Government record, cited
NSN 4820-01-050-2818 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-050-2818. Manufacturer of record part number: 20194.
Nearby stock numbers← 4820-01-050-2253 Regulator, Temperature and Pressu
·
4820-01-050-2819 Valve, Safety Relief →
4820-01-050-2818 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Identification
NSN: 4820-01-050-2818
NIIN: 010502818
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 20194
Manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-050-2818, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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,safety Relief
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187)
Technical Specifications
Parameter
Value
NSN
4820-01-050-2818
Primary Part Number
20194
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-127-511620194JS41MPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-130-53852019401E0025POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-237-280620194NS41MPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
6520-01-290-116420194POSSIBLE MATCH
ETCHANT GEL,REFILL,DENTAL
Possible match (shared part number)Kerr Corporation
4820-01-315-256220194 ASSY 20194EM41MPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5895-01-462-1806POSSIBLE MATCH
RECEIVER-TRANSMITTER GROUP
Possible match (shared part number)
4820-01-501-314320194KS41MPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-511-54792019409E0205MODPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-526-845820194DM41MPOSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Reference documents
Reference
Meaning
MIL-V-24332
5/9Secondary reference
U.S. Government activity
MIL-DTL-24332
4/1Identification reference
U.S. Government activity
20194HS41M
5/9Secondary reference
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
20194
5/9Secondary reference
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Related Parts
4820-01-127-5116POSSIBLE MATCH
VALVE,SAFETY RELIEF
20194JS41M
4820-01-130-5385POSSIBLE MATCH
VALVE,SAFETY RELIEF
2019401E0025
4820-01-237-2806POSSIBLE MATCH
VALVE,SAFETY RELIEF
20194NS41M
6520-01-290-1164POSSIBLE MATCH
ETCHANT GEL,REFILL,DENTAL
20194
4820-01-315-2562POSSIBLE MATCH
VALVE,SAFETY RELIEF
20194 ASSY 20194EM41M
5895-01-462-1806POSSIBLE MATCH
RECEIVER-TRANSMITTER GROUP
4820-01-501-3143POSSIBLE MATCH
VALVE,SAFETY RELIEF
20194KS41M
4820-01-511-5479POSSIBLE MATCH
VALVE,SAFETY RELIEF
2019409E0205MOD
4820-01-526-8458POSSIBLE MATCH
VALVE,SAFETY RELIEF
20194DM41M
Frequently Asked Questions
What is NSN 4820-01-050-2818?
NSN 4820-01-050-2818 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-050-2818?
NSN 4820-01-050-2818 has 2 manufacturer part numbers on file: 20194 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20194HS41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
What NSN replaces 4820-01-050-2818?
9 possible matches (shared part number, not a government interchangeability claim): 4820-01-127-5116, 4820-01-130-5385, 4820-01-237-2806. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-050-2818 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.