PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28733-001 ITEM 35Stem,fluid Valve

Marotta Controls Inc · NSN 4820-01-331-6536 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-331-6536 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-331-6536. Primary manufacturer part number: 28733-001 ITEM 35.
Features
  • Stem,fluid Valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Marotta Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-331-6536, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Marotta Controls Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameStem,fluid Valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersMarotta Controls Inc (CAGE 99657)
Technical Specifications
ParameterValue
NSN4820-01-331-6536
Primary Part Number28733-001 ITEM 35
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMarotta Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-329-8847194141 INTERCHANGEABLE
Seat,valve
Marotta Controls Inc
4820-01-330-5082194153 INTERCHANGEABLE
Disk,valve
Marotta Controls Inc
4820-01-330-5926283733-0001 INTERCHANGEABLE
Valve,globe
Marotta Controls Inc
Cross-Reference Index
Part NumberManufacturer
28733-001 ITEM 35 PRIMARY Marotta Controls Inc (USA)
194159-0036 Marotta Controls Inc (USA)
283733-0001 Marotta Controls Inc (USA)
Related Parts
4820-01-329-8847INTERCHANGEABLE
SEAT,VALVE
194141
4820-01-330-5082INTERCHANGEABLE
DISK,VALVE
194153
4820-01-330-5926INTERCHANGEABLE
VALVE,GLOBE
283733-0001

Frequently Asked Questions

What is NSN 4820-01-331-6536?

NSN 4820-01-331-6536 is a Stem,fluid Valve, manufactured by Marotta Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-331-6536?

NSN 4820-01-331-6536 has 3 cross-referenced part numbers: 28733-001 ITEM 35 (Marotta Controls Inc), 194159-0036 (Marotta Controls Inc), 283733-0001 (Marotta Controls Inc).

What NSN replaces 4820-01-331-6536?

There are 3 known substitutes for 4820-01-331-6536: 4820-01-329-8847, 4820-01-330-5082, 4820-01-330-5926. Verify interchangeability with system specifications before substitution.

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