PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WM-617AValve,control,diaphragm

Williams Controls Inc · NSN 4820-01-054-0568 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-054-0568 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-054-0568. Primary manufacturer part number: WM-617A.
Features
  • Valve,control,diaphragm — FSC 4820
  • General Characteristics Item Description: NORMALLY CLOSED; 0 TO 150 PSI INLET PRESSURE; ALL PORTS 1/8 IN. NPT; 3/16 IN. HOLE CAPACITY IN
  • 3 verified cross-references
  • Primary manufacturer: Williams Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,control,diaphragm, cataloged under National Stock Number 4820-01-054-0568, 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 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-054-0568
Primary Part NumberWM-617A
Item NameValve,control,diaphragm
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliams Controls Inc
StatusACTIVE
General Characteristics Item DescriptionNORMALLY CLOSED; 0 TO 150 PSI INLET PRESSURE; ALL PORTS 1/8 IN. NPT; 3/16 IN. HOLE CAPACITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5935-00-759-3881 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cross-Reference Index
Part NumberManufacturer
111462 Williams Controls Inc (USA)
WM-617A PRIMARY Williams Controls Inc (USA)
WM-126-B Williams Controls Inc (USA)
Related Parts
5935-00-759-3881INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON

Frequently Asked Questions

What is NSN 4820-01-054-0568?

NSN 4820-01-054-0568 is a Valve,control,diaphragm, manufactured by Williams Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-054-0568?

NSN 4820-01-054-0568 has 3 cross-referenced part numbers: 111462 (Williams Controls Inc), WM-617A (Williams Controls Inc), WM-126-B (Williams Controls Inc).

What NSN replaces 4820-01-054-0568?

There is 1 known substitute for 4820-01-054-0568: 5935-00-759-3881. Verify interchangeability with system specifications before substitution.

What are the specifications of WM-617A?

Key specifications for WM-617A: General Characteristics Item Description: NORMALLY CLOSED; 0 TO 150 PSI INLET PRESSURE; ALL PORTS 1/8 IN. NPT; 3/16 IN. HOLE CAPACITY 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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