PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WM338U1C1DValve,throttle

Williams Controls Inc · NSN 4820-01-315-6644 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-315-6644 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-315-6644. Primary manufacturer part number: WM338U1C1D.
Features
  • Valve,throttle — FSC 4820
  • Valve Operation Method: MANUAL
  • Media for Which Designed: AIR SINGLE RESPONSE
  • Maximum Operating Temp: 125.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • 2 verified cross-references
  • Primary manufacturer: Williams Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,throttle, cataloged under National Stock Number 4820-01-315-6644, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Williams Controls Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-315-6644
Primary Part NumberWM338U1C1D
Item NameValve,throttle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliams Controls Inc
StatusACTIVE
Valve Operation MethodMANUAL
Media for Which DesignedAIR SINGLE RESPONSE
Maximum Operating Temp125.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6105-01-076-4670120076 INTERCHANGEABLE
Motor,alternating Current
Leeson Electric Corp
3040-01-317-8290 INTERCHANGEABLE
Lever,remote Control
9150-01-391-7059131001 INTERCHANGEABLE
Lubricating Oil,utility
Washington Trading Company Inc Dba Ballistol Usa
5340-01-522-3187120076 INTERCHANGEABLE
Muffler End Cap Assembly
Huck International, Inc. Div Kingston Operations
Cross-Reference Index
Part NumberManufacturer
WM338U1C1D PRIMARY Williams Controls Inc (USA)
120076 Williams Controls Inc (USA)
Related Parts
6105-01-076-4670INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
120076
3040-01-317-8290INTERCHANGEABLE
LEVER,REMOTE CONTROL
9150-01-391-7059INTERCHANGEABLE
LUBRICATING OIL,UTILITY
131001
5340-01-522-3187INTERCHANGEABLE
MUFFLER END CAP ASSEMBLY
120076

Frequently Asked Questions

What is NSN 4820-01-315-6644?

NSN 4820-01-315-6644 is a Valve,throttle, manufactured by Williams Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-315-6644?

NSN 4820-01-315-6644 has 2 cross-referenced part numbers: WM338U1C1D (Williams Controls Inc), 120076 (Williams Controls Inc).

What NSN replaces 4820-01-315-6644?

There are 4 known substitutes for 4820-01-315-6644: 6105-01-076-4670, 3040-01-317-8290, 9150-01-391-7059 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WM338U1C1D?

Key specifications for WM338U1C1D: Valve Operation Method: MANUAL; Special Features: 5.820 IN.O/A H IN; Media for Which Designed: AIR SINGLE RESPONSE; End Item Identification: 3930-01-275-6420. 5 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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