PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6666Valve Assembly,top

Greno Industries, Inc. Dba Greno Industries Inc · NSN 4820-01-176-6049 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-176-6049 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-176-6049. Primary manufacturer part number: 6666.
Features
  • Valve Assembly,top — FSC 4820
  • General Characteristics Item Description: 17-4 STAINLESS STEEL,HEAT TREATED
  • 3 verified cross-references
  • Primary manufacturer: Greno Industries, Inc. Dba Greno Industries Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,top, cataloged under National Stock Number 4820-01-176-6049, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Greno Industries, Inc. Dba Greno Industries Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-176-6049
Primary Part Number6666
Item NameValve Assembly,top
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGreno Industries, Inc. Dba Greno Industries Inc
StatusACTIVE
General Characteristics Item Description17-4 STAINLESS STEEL,HEAT TREATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-146-8971 INTERCHANGEABLE
Valve,check
5210-00-357-9434599-9642-60 INTERCHANGEABLE
Gage Stock,thickness
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
4720-00-857-1731 INTERCHANGEABLE
Hose,nonmetallic
2990-00-947-61036666 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5915-01-052-34196666 INTERCHANGEABLE
Filter,band Pass
Stellant Systems Inc
3020-01-110-9917 INTERCHANGEABLE
Gear Cluster
4730-01-121-77216666 INTERCHANGEABLE
Strainer Element,sediment
Tescom Corp Dba Tescom Div Tescom
5950-01-145-3043 INTERCHANGEABLE
Transformer
4820-01-176-07916667 INTERCHANGEABLE
Disk,valve
Greno Industries, Inc. Dba Greno Industries Inc
4820-01-177-39576614 INTERCHANGEABLE
Housing,piston
Greno Industries, Inc. Dba Greno Industries Inc
Cross-Reference Index
Part NumberManufacturer
6600D 21 Greno Industries, Inc. Dba Greno Industries Inc (USA)
6600D Greno Industries, Inc. Dba Greno Industries Inc (USA)
6666 PRIMARY Greno Industries, Inc. Dba Greno Industries Inc (USA)
Related Parts
4820-00-146-8971INTERCHANGEABLE
VALVE,CHECK
5210-00-357-9434INTERCHANGEABLE
GAGE STOCK,THICKNESS
599-9642-60
4720-00-857-1731INTERCHANGEABLE
HOSE,NONMETALLIC
2990-00-947-6103INTERCHANGEABLE
MUFFLER,EXHAUST
6666
5915-01-052-3419INTERCHANGEABLE
FILTER,BAND PASS
6666
3020-01-110-9917INTERCHANGEABLE
GEAR CLUSTER
4730-01-121-7721INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
6666
5950-01-145-3043INTERCHANGEABLE
TRANSFORMER
4820-01-176-0791INTERCHANGEABLE
DISK,VALVE
6667
4820-01-177-3957INTERCHANGEABLE
HOUSING,PISTON
6614
4820-01-178-3042INTERCHANGEABLE
HOUSING,ADJUSTER
6622
4820-01-179-6335INTERCHANGEABLE
CAP,STEM
6624

Frequently Asked Questions

What is NSN 4820-01-176-6049?

NSN 4820-01-176-6049 is a Valve Assembly,top, manufactured by Greno Industries, Inc. Dba Greno Industries Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-176-6049?

NSN 4820-01-176-6049 has 3 cross-referenced part numbers: 6600D 21 (Greno Industries, Inc. Dba Greno Industries Inc), 6600D (Greno Industries, Inc. Dba Greno Industries Inc), 6666 (Greno Industries, Inc. Dba Greno Industries Inc).

What NSN replaces 4820-01-176-6049?

There are 12 known substitutes for 4820-01-176-6049: 4820-00-146-8971, 5210-00-357-9434, 4720-00-857-1731 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6666?

Key specifications for 6666: General Characteristics Item Description: 17-4 STAINLESS STEEL,HEAT TREATED. 1 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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