PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-120Valve,flow Control

Kirby Morgan Dive Systems Inc · NSN 4820-01-584-6156 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-584-6156 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-584-6156. Primary manufacturer part number: 820-120.
Features
  • Valve,flow Control — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Kirby Morgan Dive Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,flow Control, cataloged under National Stock Number 4820-01-584-6156, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kirby Morgan Dive Systems Inc. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4820-01-584-6156
Primary Part Number820-120
Item NameValve,flow Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKirby Morgan Dive Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1375-00-028-5235 INTERCHANGEABLE
Charge,demolition
1375-00-028-5237 INTERCHANGEABLE
Charge,demolition
1375-00-529-7698E3070230 INTERCHANGEABLE
Charge,demolition
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-01-176-79158201-20 INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
6680-01-546-2555820120 INTERCHANGEABLE
Indicator,sight,liquid
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
820-120 PRIMARY Kirby Morgan Dive Systems Inc (USA)
Related Parts
1375-00-028-5235INTERCHANGEABLE
CHARGE,DEMOLITION
1375-00-028-5237INTERCHANGEABLE
CHARGE,DEMOLITION
1375-00-529-7698INTERCHANGEABLE
CHARGE,DEMOLITION
E3070230
5331-01-176-7915INTERCHANGEABLE
O-RING
8201-20
6680-01-546-2555INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
820120

Frequently Asked Questions

What is NSN 4820-01-584-6156?

NSN 4820-01-584-6156 is a Valve,flow Control, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-584-6156?

NSN 4820-01-584-6156 has 1 cross-referenced part number: 820-120 (Kirby Morgan Dive Systems Inc).

What NSN replaces 4820-01-584-6156?

There are 5 known substitutes for 4820-01-584-6156: 1375-00-028-5235, 1375-00-028-5237, 1375-00-529-7698 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-120?

Key specifications for 820-120: Part Name Assigned by Controlling Agency: VALVE, WATER DUMP, BODY; End Item Identification: 4220-01-561-2259, UNDERWATER MASK. 2 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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