PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T304Transformer,power

Ramapo Instrument Co Inc · NSN 5950-00-345-7474 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-345-7474 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-345-7474. Primary manufacturer part number: T304.
Features
  • Transformer,power — FSC 5950
  • Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN
  • Inclosure Type: OPEN
  • Body Width: 1.375 INCHES NOMINAL IN
  • Winding Operating Current: 350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Mounting Facility Quantity: 2 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-345-7474, 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 Ramapo Instrument Co Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-345-7474
Primary Part NumberT304
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRamapo Instrument Co Inc
StatusACTIVE
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Inclosure TypeOPEN
Body Width1.375 INCHES NOMINAL IN
Winding Operating Current350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Terminal Type and Quantity4 WIRE LEAD
Distance Between Mounting Facility Centers2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height1.375 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Length2.375 INCHES NOMINAL IN
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Power Rating4.2 VOLTS-AMPERES SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage117.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-268-3448QD572 INTERCHANGEABLE
Gasket
Wisconsin Motors, Llc
5305-00-271-2068T304 INTERCHANGEABLE
Screw,machine
All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners
4710-00-279-0942T304 INTERCHANGEABLE
Tube,metallic
Aluminum Co of America
4730-00-288-93918F8997 INTERCHANGEABLE
Inverted Nut,tube Coupling
Caterpillar Inc Div Caterpillar Defense
3110-00-554-5396 INTERCHANGEABLE
Bearing,ball,annular
5845-00-789-8069115922-6 INTERCHANGEABLE
Emitter Follower
L3harris Technologies, Inc.
4730-00-836-820128737 INTERCHANGEABLE
Coupling,clamp,pipe
Kaydon Custom Filtration Corporation
5950-01-035-6836 INTERCHANGEABLE
Reactor
1650-01-165-67792-000-007-2 INTERCHANGEABLE
Air Mixer Nozzle,ca
Teksun Inc
5340-01-497-07577072505-5 INTERCHANGEABLE
Mount,resilient,utility
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
T304 Ramapo Instrument Co Inc (USA)
28737 Gte Products Corp Lighting Products Group (USA)
P8391 Emerson Electric Co White-Rodgers Div (USA)
10984581 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
23V253 Thordarson Inc (USA)
Related Parts
5330-00-268-3448INTERCHANGEABLE
GASKET
QD572
5305-00-271-2068INTERCHANGEABLE
SCREW,MACHINE
T304
4710-00-279-0942INTERCHANGEABLE
TUBE,METALLIC
T304
4730-00-288-9391INTERCHANGEABLE
INVERTED NUT,TUBE COUPLING
8F8997
3110-00-554-5396INTERCHANGEABLE
BEARING,BALL,ANNULAR
5845-00-789-8069INTERCHANGEABLE
EMITTER FOLLOWER
115922-6
4730-00-836-8201INTERCHANGEABLE
COUPLING,CLAMP,PIPE
28737
5950-01-035-6836INTERCHANGEABLE
REACTOR
1650-01-165-6779INTERCHANGEABLE
AIR MIXER NOZZLE,CA
2-000-007-2
5340-01-497-0757INTERCHANGEABLE
MOUNT,RESILIENT,UTILITY
7072505-5
7025-01-567-5649INTERCHANGEABLE
MEMORY CARD,PERSONAL COMPUTER
UPGPERDRAM32B

Frequently Asked Questions

What is NSN 5950-00-345-7474?

NSN 5950-00-345-7474 is a Transformer,power, manufactured by Ramapo Instrument Co Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-345-7474?

NSN 5950-00-345-7474 has 5 cross-referenced part numbers: T304 (Ramapo Instrument Co Inc), 28737 (Gte Products Corp Lighting Products Group), P8391 (Emerson Electric Co White-Rodgers Div), 10984581 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), 23V253 (Thordarson Inc).

What NSN replaces 5950-00-345-7474?

There are 11 known substitutes for 5950-00-345-7474: 5330-00-268-3448, 5305-00-271-2068, 4710-00-279-0942 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T304?

Key specifications for T304: Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN; Inclosure Type: OPEN; Body Width: 1.375 INCHES NOMINAL IN; Winding Operating Current: 350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY. 17 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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