NSN 4820-01-090-6535 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-090-6535. Manufacturer of record part number: 50M170.
The Cap,valve, cataloged under National Stock Number 4820-01-090-6535, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
4820-01-090-6535
Primary Part Number
50M170
Item Name
Cap,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Metrex Valve Corp. Dba Metrex Valve Corp
Status
ACTIVE
Valve Type for Which Designed
FLUID PRESSURE REGULATING
Valve Model Number for Which Designed
RVN5300
Material
STEEL
Attachment Method
BOLTS
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.
4820-01-090-9171RVN5300-200POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Metrex Valve Corp. Dba Metrex Valve Corp
4820-01-433-0271POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)
4820-01-470-476450M-170-1POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Metrex Valve Corp. Dba Metrex Valve Corp
4820-01-470-4766N-7044-1POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Metrex Valve Corp. Dba Metrex Valve Corp
4820-01-470-5169NM-7210-1POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Metrex Valve Corp. Dba Metrex Valve Corp
NSN 4820-01-090-6535 is a Cap,valve, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-090-6535?
NSN 4820-01-090-6535 has 1 manufacturer part number on file: 50M170 (Metrex Valve Corp. Dba Metrex Valve Corp).
What NSN replaces 4820-01-090-6535?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-090-9171, 4820-01-433-0271, 4820-01-470-4764. Verify interchangeability with system specifications before substitution.
What are the specifications of 50M170?
Key specifications for 50M170: Valve Type for Which Designed: FLUID PRESSURE REGULATING; Valve Model Number for Which Designed: RVN5300; Special Features: INCLUDES BUSHING; Material: STEEL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-090-6535 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.