PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4977Disk,valve

Husco International Inc · NSN 4820-01-066-9559 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-066-9559 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-066-9559. Primary manufacturer part number: 4977.
Features
  • Disk,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Husco International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-066-9559, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Husco International Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-066-9559
Primary Part Number4977
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHusco International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-291-637542746D INTERCHANGEABLE
Seal,plain Encased
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5330-00-391-8370N0497767 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
3040-00-394-84494977 INTERCHANGEABLE
Shaft,turbine
Northrop Grumman Systems Corporation Div Marine Systems
3110-01-035-37653TKMS8-18-92 INTERCHANGEABLE
Bearing,ball,annular
Mpb Corporation Dba Mpb Corp
5940-01-118-14824979 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
6145-01-197-34122143 INTERCHANGEABLE
Cable,special Purpose,electrical
K and J Associates Inc
4710-01-208-87444977 INTERCHANGEABLE
Tube,metallic,coppe
Elliott Machine Works Inc
5935-01-258-2137 INTERCHANGEABLE
Connector,plug,electrical
5330-01-341-2145A71177 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
4977 PRIMARY Husco International Inc (USA)
S62303 Cnh Industrial America Llc Dba Cnh America (USA)
Related Parts
5330-00-291-6375INTERCHANGEABLE
SEAL,PLAIN ENCASED
42746D
5330-00-391-8370INTERCHANGEABLE
GASKET
N0497767
3040-00-394-8449INTERCHANGEABLE
SHAFT,TURBINE
4977
3110-01-035-3765INTERCHANGEABLE
BEARING,BALL,ANNULAR
3TKMS8-18-92
5940-01-118-1482INTERCHANGEABLE
TERMINAL,LUG
4979
6145-01-197-3412INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
2143
4710-01-208-8744INTERCHANGEABLE
TUBE,METALLIC,COPPE
4977
5935-01-258-2137INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5330-01-341-2145INTERCHANGEABLE
GASKET
A71177

Frequently Asked Questions

What is NSN 4820-01-066-9559?

NSN 4820-01-066-9559 is a Disk,valve, manufactured by Husco International Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-066-9559?

NSN 4820-01-066-9559 has 2 cross-referenced part numbers: 4977 (Husco International Inc), S62303 (Cnh Industrial America Llc Dba Cnh America).

What NSN replaces 4820-01-066-9559?

There are 9 known substitutes for 4820-01-066-9559: 5330-00-291-6375, 5330-00-391-8370, 3040-00-394-8449 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4977?

Key specifications for 4977: Special Features: 2.281 IN. O/A LG;0.719 IN. ID;1.184 IN. OD;W/S16 0.219 IN. DIA HOLES EQUALLY SPACED O.297 IN. FROM END IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com