PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

283996-0001Valve Assembly,manifold

Marotta Controls Inc · NSN 4820-01-363-3949 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-363-3949 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-363-3949. Primary manufacturer part number: 283996-0001.
Features
  • Valve Assembly,manifold — FSC 4820
  • Connection Type: BRAZING, PIPE
  • Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
  • Nondefinitive Spec/std Data: A TYPE AND 2-1 ARRANGEMENT
  • Maximum Operating Temp and Media for Which Designed: 140.0 FAHRENHEIT AIR DEGF
  • Nominal Pipe Size Accommodated: 0.375 INCHES AND 0.750 INCHES IN
  • Valve Operation Method: AIR
  • 3 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,manifold, cataloged under National Stock Number 4820-01-363-3949, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Marotta Controls Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-363-3949
Primary Part Number283996-0001
Item NameValve Assembly,manifold
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMarotta Controls Inc
StatusACTIVE
Connection TypeBRAZING, PIPE
Operating Pressure and Type3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS
Nondefinitive Spec/std DataA TYPE AND 2-1 ARRANGEMENT
Maximum Operating Temp and Media for Which Designed140.0 FAHRENHEIT AIR DEGF
Nominal Pipe Size Accommodated0.375 INCHES AND 0.750 INCHES IN
Valve Operation MethodAIR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-01-161-0954 INTERCHANGEABLE
Valve Assembly,manifold
4820-01-468-1251 INTERCHANGEABLE
Valve Assembly,manifold
4820-01-468-1695 INTERCHANGEABLE
Valve Assembly,manifold
4820-01-500-3493 INTERCHANGEABLE
Valve Assembly,manifold
4820-01-500-4260 INTERCHANGEABLE
Valve Assembly,manifold
Cross-Reference Index
Part NumberManufacturer
RM21EF Marotta Controls Inc (USA)
283996-0001 PRIMARY Marotta Controls Inc (USA)
MIL-V-24272 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4820-01-161-0954INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
4820-01-468-1251INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
4820-01-468-1695INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
4820-01-500-3493INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
4820-01-500-4260INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD

Frequently Asked Questions

What is NSN 4820-01-363-3949?

NSN 4820-01-363-3949 is a Valve Assembly,manifold, manufactured by Marotta Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-363-3949?

NSN 4820-01-363-3949 has 3 cross-referenced part numbers: RM21EF (Marotta Controls Inc), 283996-0001 (Marotta Controls Inc), MIL-V-24272 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4820-01-363-3949?

There are 5 known substitutes for 4820-01-363-3949: 4820-01-161-0954, 4820-01-468-1251, 4820-01-468-1695 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 283996-0001?

Key specifications for 283996-0001: Connection Type: BRAZING, PIPE; Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS; Nondefinitive Spec/std Data: A TYPE AND 2-1 ARRANGEMENT; Maximum Operating Temp and Media for Which Designed: 140.0 FAHRENHEIT AIR DEGF. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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