PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21577Transformer

Emerson Process Management Valve Automation, Inc. · NSN 5950-01-185-1997 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-185-1997 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-185-1997. Primary manufacturer part number: 21577.
Features
  • Transformer — FSC 5950
  • 3 verified cross-references
  • Primary manufacturer: Emerson Process Management Valve Automation, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer, cataloged under National Stock Number 5950-01-185-1997, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Emerson Process Management Valve Automation, Inc.. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameTransformer
FSC / FSG5950 — No Item Name Available (FSG 59)
ManufacturersEmerson Process Management Valve Automation, Inc. (CAGE 01379)
Technical Specifications
ParameterValue
NSN5950-01-185-1997
Primary Part Number21577
Item NameTransformer
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEmerson Process Management Valve Automation, Inc.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-036-61735322 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
2810-00-118-738521577 INTERCHANGEABLE
Plunger,relief Valve
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6640-00-127-478046814-00 INTERCHANGEABLE
Test Tube,comparison
Hach Company Dba Hach Co
5935-00-161-4718 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5315-00-297-12992157 INTERCHANGEABLE
Pin,tapered,plain
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5355-00-433-49262157 INTERCHANGEABLE
Dial-Knob,lock
Bi Technologies Corporation Div Bi Technologies Corp.
5315-00-474-9724 INTERCHANGEABLE
Pin,straight,headless
5330-00-596-766115254-18 INTERCHANGEABLE
Packing,preformed
Meggitt (new Hampshire), Inc
5315-00-628-42102157 INTERCHANGEABLE
Pin,quick Release
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
5815-00-975-9718 INTERCHANGEABLE
Shaft
Cross-Reference Index
Part NumberManufacturer
21577 Emerson Process Management Valve Automation, Inc. (USA)
2300 Emerson Process Management Valve Automation, Inc. (USA)
2157 Emerson Process Management Valve Automation, Inc. (USA)
Related Parts
5950-00-036-6173INTERCHANGEABLE
TRANSFORMER,POWER
5322
2810-00-118-7385INTERCHANGEABLE
PLUNGER,RELIEF VALVE
21577
6640-00-127-4780INTERCHANGEABLE
TEST TUBE,COMPARISON
46814-00
5935-00-161-4718INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5315-00-297-1299INTERCHANGEABLE
PIN,TAPERED,PLAIN
2157
5355-00-433-4926INTERCHANGEABLE
DIAL-KNOB,LOCK
2157
5315-00-474-9724INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5330-00-596-7661INTERCHANGEABLE
PACKING,PREFORMED
15254-18
5315-00-628-4210INTERCHANGEABLE
PIN,QUICK RELEASE
2157
5815-00-975-9718INTERCHANGEABLE
SHAFT
5975-01-082-0162INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUCTOR
2157
4730-01-140-9466INTERCHANGEABLE
CAP,QUICK DISCONNECT
2157-7

Frequently Asked Questions

What is NSN 5950-01-185-1997?

NSN 5950-01-185-1997 is a Transformer, manufactured by Emerson Process Management Valve Automation, Inc., classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-01-185-1997?

NSN 5950-01-185-1997 has 3 cross-referenced part numbers: 21577 (Emerson Process Management Valve Automation, Inc.), 2300 (Emerson Process Management Valve Automation, Inc.), 2157 (Emerson Process Management Valve Automation, Inc.).

What NSN replaces 5950-01-185-1997?

There are 12 known substitutes for 5950-01-185-1997: 5950-00-036-6173, 2810-00-118-7385, 6640-00-127-4780 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5950-01-185-1997 still in active supply?

NSN 5950-01-185-1997 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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