PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V400-012Gear Operator,valve

Velan Valve Corp. · NSN 4820-01-371-6842 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-371-6842 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-371-6842. Primary manufacturer part number: V400-012.
Features
  • Gear Operator,valve — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 1 verified cross-reference
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Power transmission and speed reduction
  • Rotary motion transfer
General Description

The Gear Operator,valve, cataloged under National Stock Number 4820-01-371-6842, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-371-6842
Primary Part NumberV400-012
Item NameGear Operator,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-01-377-7201 INTERCHANGEABLE
Washer,lock
3040-01-417-67259500-310 INTERCHANGEABLE
Hub,body
Velan Valve Corp.
3020-01-417-67309500-306 INTERCHANGEABLE
Gear Set,bevel,matched
Velan Valve Corp.
3020-01-418-47129500-314 INTERCHANGEABLE
Adapter,gear Operator
Velan Valve Corp.
3020-01-418-47249500-315 INTERCHANGEABLE
Adapter,yoke
Velan Valve Corp.
3120-01-546-37209500-328-088 INTERCHANGEABLE
Bearing,sleeve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
V400-012 Velan Valve Corp. (USA)
Related Parts
5310-01-377-7201INTERCHANGEABLE
WASHER,LOCK
3040-01-417-6725INTERCHANGEABLE
HUB,BODY
9500-310
3020-01-417-6730INTERCHANGEABLE
GEAR SET,BEVEL,MATCHED
9500-306
3020-01-418-4712INTERCHANGEABLE
ADAPTER,GEAR OPERATOR
9500-314
3020-01-418-4724INTERCHANGEABLE
ADAPTER,YOKE
9500-315
3120-01-546-3720INTERCHANGEABLE
BEARING,SLEEVE
9500-328-088

Frequently Asked Questions

What is NSN 4820-01-371-6842?

NSN 4820-01-371-6842 is a Gear Operator,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-371-6842?

NSN 4820-01-371-6842 has 1 cross-referenced part number: V400-012 (Velan Valve Corp.).

What NSN replaces 4820-01-371-6842?

There are 6 known substitutes for 4820-01-371-6842: 5310-01-377-7201, 3040-01-417-6725, 3020-01-417-6730 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of V400-012?

Key specifications for V400-012: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 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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