PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6600D 5Plug,piston,top

Greno Industries, Inc. Dba Greno Industries Inc · NSN 4820-01-177-3956 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-177-3956 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-177-3956. Primary manufacturer part number: 6600D 5.
Features
  • Plug,piston,top — FSC 4820
  • General Characteristics Item Description: STEEL 17-4PH; O/A H 1.604 IN.; WIDTH ACROSS FLATS 1.163 IN.; OD 1.725 IN.; EXT THD 1.725-12 UN; THD LG. 1.320 IN.; SEAT ANGLE 60.0 DEG IN
  • 3 verified cross-references
  • Primary manufacturer: Greno Industries, Inc. Dba Greno Industries Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Plug,piston,top, cataloged under National Stock Number 4820-01-177-3956, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-177-3956
Primary Part Number6600D 5
Item NamePlug,piston,top
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGreno Industries, Inc. Dba Greno Industries Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL 17-4PH; O/A H 1.604 IN.; WIDTH ACROSS FLATS 1.163 IN.; OD 1.725 IN.; EXT THD 1.725-12 UN; THD LG. 1.320 IN.; SEAT ANGLE 60.0 DEG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-120-4472AT8081A INTERCHANGEABLE
Bearing,ball,thrust
Schatz Bearing Corporation Dba Schatz Bearing Corp
5305-00-206-1288 INTERCHANGEABLE
Screw,machine
3010-00-371-32056615 INTERCHANGEABLE
Disk,clutch,nonvehicular
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5935-01-114-8172 INTERCHANGEABLE
Connector,receptacle,electrical
5998-01-159-51846615 INTERCHANGEABLE
Extractor,electrical Card
Protolab
4810-01-423-8027 INTERCHANGEABLE
Piston,valve
3040-01-423-8745 INTERCHANGEABLE
Shaft Assembly,shouldered
4810-01-423-9177 INTERCHANGEABLE
Valve,solenoid
Cross-Reference Index
Part NumberManufacturer
6600 Greno Industries, Inc. Dba Greno Industries Inc (USA)
6600D 5 PRIMARY Greno Industries, Inc. Dba Greno Industries Inc (USA)
6615 PRIMARY Greno Industries, Inc. Dba Greno Industries Inc (USA)
Related Parts
3110-00-120-4472INTERCHANGEABLE
BEARING,BALL,THRUST
AT8081A
5305-00-206-1288INTERCHANGEABLE
SCREW,MACHINE
3010-00-371-3205INTERCHANGEABLE
DISK,CLUTCH,NONVEHICULAR
6615
5935-01-114-8172INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5998-01-159-5184INTERCHANGEABLE
EXTRACTOR,ELECTRICAL CARD
6615
4810-01-423-8027INTERCHANGEABLE
PISTON,VALVE
3040-01-423-8745INTERCHANGEABLE
SHAFT ASSEMBLY,SHOULDERED
4810-01-423-9177INTERCHANGEABLE
VALVE,SOLENOID

Frequently Asked Questions

What is NSN 4820-01-177-3956?

NSN 4820-01-177-3956 is a Plug,piston,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 4820-01-177-3956?

NSN 4820-01-177-3956 has 3 cross-referenced part numbers: 6600 (Greno Industries, Inc. Dba Greno Industries Inc), 6600D 5 (Greno Industries, Inc. Dba Greno Industries Inc), 6615 (Greno Industries, Inc. Dba Greno Industries Inc).

What NSN replaces 4820-01-177-3956?

There are 8 known substitutes for 4820-01-177-3956: 3110-00-120-4472, 5305-00-206-1288, 3010-00-371-3205 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6600D 5?

Key specifications for 6600D 5: General Characteristics Item Description: STEEL 17-4PH; O/A H 1.604 IN.; WIDTH ACROSS FLATS 1.163 IN.; OD 1.725 IN.; EXT THD 1.725-12 UN; THD LG. 1.320 IN.; SEAT ANGLE 60.0 DEG IN. 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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