PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90275-1Disk,valve

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · NSN 4820-01-146-7969 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-146-7969 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-146-7969. Primary manufacturer part number: 90275-1.
Features
  • Disk,valve — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • 3 verified cross-references
  • Primary manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-146-7969, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4820-01-146-7969
Primary Part Number90275-1
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4820-01-097-3788G80046-1 INTERCHANGEABLE
Stem,fluid Valve
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4820-01-104-930710250-17 INTERCHANGEABLE
Guide,valve Stem
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4820-01-119-685410205-11 INTERCHANGEABLE
Valve,globe
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4820-01-312-8610 INTERCHANGEABLE
Disk,valve
4820-01-320-818210-00-8055 INTERCHANGEABLE
Valve,globe
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-321-810310-00-8056A INTERCHANGEABLE
Valve,globe
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-482-070111-08-1000 INTERCHANGEABLE
Valve,globe
Electric Boat Corporation Div General Dynamics Electric Boat
5340-01-718-28912621-906-13 ITEM 72 INTERCHANGEABLE
Handwheel
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
90275-1 PRIMARY Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
2621-906-13 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2621-906-13 ITEM 62 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4820-01-097-3788INTERCHANGEABLE
STEM,FLUID VALVE
G80046-1
4820-01-104-9307INTERCHANGEABLE
GUIDE,VALVE STEM
10250-17
4820-01-119-6854INTERCHANGEABLE
VALVE,GLOBE
10205-11
4820-01-312-8610INTERCHANGEABLE
DISK,VALVE
4820-01-320-8182INTERCHANGEABLE
VALVE,GLOBE
10-00-8055
4820-01-321-8103INTERCHANGEABLE
VALVE,GLOBE
10-00-8056A
4820-01-482-0701INTERCHANGEABLE
VALVE,GLOBE
11-08-1000
5340-01-718-2891INTERCHANGEABLE
HANDWHEEL
2621-906-13 ITEM 72

Frequently Asked Questions

What is NSN 4820-01-146-7969?

NSN 4820-01-146-7969 is a Disk,valve, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-146-7969?

NSN 4820-01-146-7969 has 3 cross-referenced part numbers: 90275-1 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 2621-906-13 (Electric Boat Corporation Div General Dynamics Electric Boat), 2621-906-13 ITEM 62 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-146-7969?

There are 8 known substitutes for 4820-01-146-7969: 4820-01-097-3788, 4820-01-104-9307, 4820-01-119-6854 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90275-1?

Key specifications for 90275-1: Material: STEEL CORROSION RESISTING. 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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