PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3990-1Transf Pul

A M I/ Coast Magnetics Inc. Dba Coast Magnetics · NSN 5950-01-148-2295 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-148-2295 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-148-2295. Primary manufacturer part number: 3990-1.
Features
  • Transf Pul — FSC 5950
  • Special Test Features: TURNS RATIO: 1:1; PRIMARY SINE WAVE OCL MH MINIMUM: 0.6; PRIMARY ET-CONSTANT: 1000 (V MINIMUM); RISE TIME (N5 MAX): 20; PRI/SEC CW/H (PF MAXIMUM): 65; PRI/SEC LEAKAGE INDUCTANCE (AAH MAXIMUM): 3.0; PRIMARY DCR (OHMS MAXIMUM): 0.15; SECONDARY DCR: .016 OHMS MAXIMUM
  • General Characteristics Item Description: PARTS SHALL MEET THE REQUIREMENTS OF MIL-T-21038, GRADE 5, CLASS S, LIFE X UNLESS OTHERWISE SPECIFIED ON DRAWING
  • Supplementary Features: RATINGS: PEAK POWER: 25KW; AVERAGE POWER: 25 WATTS; PEAK PULSE VOLTAGE: 2KV; DC ISOLATION PRIMARY TO SECONDARY SHALL BE 5KV MINIMUM; PARTS SHALL WITHSTAND THE FOLLOWING HIGH POTENTIAL TEST WITHOUT ELECTRICAL DAMAGE, ARCING OR FLASHOVER: SECONDARY TO PRIMARY AND CORE: 15KVDC MINIMUM; PRIMARY TO CORE: 5KVDC MINIMUM; SECONDARY TO SECONDARY: 5KVDC MINIMUM; INSULATION RESISTANCE SHALL BE 10,000 MEGOHMS MINIMUM
  • 8 verified cross-references
  • Primary manufacturer: A M I/ Coast Magnetics Inc. Dba Coast Magnetics
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transf Pul, cataloged under National Stock Number 5950-01-148-2295, 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 A M I/ Coast Magnetics Inc. Dba Coast Magnetics. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-148-2295
Primary Part Number3990-1
Item NameTransf Pul
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerA M I/ Coast Magnetics Inc. Dba Coast Magnetics
StatusACTIVE
Special Test FeaturesTURNS RATIO: 1:1; PRIMARY SINE WAVE OCL MH MINIMUM: 0.6; PRIMARY ET-CONSTANT: 1000 (V MINIMUM); RISE TIME (N5 MAX): 20; PRI/SEC CW/H (PF MAXIMUM): 65; PRI/SEC LEAKAGE INDUCTANCE (AAH MAXIMUM): 3.0; PRIMARY DCR (OHMS MAXIMUM): 0.15; SECONDARY DCR: .016 OHMS MAXIMUM
General Characteristics Item DescriptionPARTS SHALL MEET THE REQUIREMENTS OF MIL-T-21038, GRADE 5, CLASS S, LIFE X UNLESS OTHERWISE SPECIFIED ON DRAWING
Supplementary FeaturesRATINGS: PEAK POWER: 25KW; AVERAGE POWER: 25 WATTS; PEAK PULSE VOLTAGE: 2KV; DC ISOLATION PRIMARY TO SECONDARY SHALL BE 5KV MINIMUM; PARTS SHALL WITHSTAND THE FOLLOWING HIGH POTENTIAL TEST WITHOUT ELECTRICAL DAMAGE, ARCING OR FLASHOVER: SECONDARY TO PRIMARY AND CORE: 15KVDC MINIMUM; PRIMARY TO CORE: 5KVDC MINIMUM; SECONDARY TO SECONDARY: 5KVDC MINIMUM; INSULATION RESISTANCE SHALL BE 10,000 MEGOHMS MINIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-481-811039901 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
3040-00-545-928239901 INTERCHANGEABLE
Shaft,shouldered
Micro Computer Consultants Inc Quality Accessories and Instruments Div
5935-00-904-98463990-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
5950-01-148-33085250 INTERCHANGEABLE
Transformer,pulse
Pulse Engineering Inc
5950-01-300-4955SM-A-911295-26 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
8030-01-534-517139901 INTERCHANGEABLE
Antiseize Compound
Loctite Corp
7930-01-701-96707100227801 INTERCHANGEABLE
Wax,automobile
3m Company
Cross-Reference Index
Part NumberManufacturer
138C185H02 Detmer Business Group Inc (USA)
138C185H02 Clipper Industries Corp (USA)
138C185H02 Q Microwave Inc Dba Q Microwave Inc (USA)
3990-1 PRIMARY A M I/ Coast Magnetics Inc. Dba Coast Magnetics (USA)
138C185H02 PRIMARY Technetics Inc. (USA)
138C185H02 Kampi Components Co Inc (USA)
138C185H02 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
138C185H02 Northrop Grumman Support Services Corp (USA)
Related Parts
5950-00-481-8110INTERCHANGEABLE
TRANSFORMER,POWER
39901
3040-00-545-9282INTERCHANGEABLE
SHAFT,SHOULDERED
39901
5935-00-904-9846INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3990-1
5950-01-148-3308INTERCHANGEABLE
TRANSFORMER,PULSE
5250
5950-01-300-4955INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-A-911295-26
8030-01-534-5171INTERCHANGEABLE
ANTISEIZE COMPOUND
39901
7930-01-701-9670INTERCHANGEABLE
WAX,AUTOMOBILE
7100227801

Frequently Asked Questions

What is NSN 5950-01-148-2295?

NSN 5950-01-148-2295 is a Transf Pul, manufactured by A M I/ Coast Magnetics Inc. Dba Coast Magnetics, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-148-2295?

NSN 5950-01-148-2295 has 8 cross-referenced part numbers: 138C185H02 (Detmer Business Group Inc), 138C185H02 (Clipper Industries Corp), 138C185H02 (Q Microwave Inc Dba Q Microwave Inc), 3990-1 (A M I/ Coast Magnetics Inc. Dba Coast Magnetics), 138C185H02 (Technetics Inc.) and 3 more.

What NSN replaces 5950-01-148-2295?

There are 7 known substitutes for 5950-01-148-2295: 5950-00-481-8110, 3040-00-545-9282, 5935-00-904-9846 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3990-1?

Key specifications for 3990-1: Special Test Features: TURNS RATIO: 1:1; PRIMARY SINE WAVE OCL MH MINIMUM: 0.6; PRIMARY ET-CONSTANT: 1000 (V MINIMUM); RISE TIME (N5 MAX): 20; PRI/SEC CW/H (PF MAXIMUM): 65; PRI/SEC LEAKAGE INDUCTANCE (AAH MAXIMUM): 3.0; PRIMARY DCR (OHMS MAXIMUM): 0.15; SECONDARY DCR: .016 OHMS MAXIMUM; General Characteristics Item Description: PARTS SHALL MEET THE REQUIREMENTS OF MIL-T-21038, GRADE 5, CLASS S, LIFE X UNLESS OTHERWISE SPECIFIED ON DRAWING; Part Name Assigned by Controlling Agency: TRANSFORMER, PULSE; Supplementary Features: RATINGS: PEAK POWER: 25KW; AVERAGE POWER: 25 WATTS; PEAK PULSE VOLTAGE: 2KV; DC ISOLATION PRIMARY TO SECONDARY SHALL BE 5KV MINIMUM; PARTS SHALL WITHSTAND THE FOLLOWING HIGH POTENTIAL TEST WITHOUT ELECTRICAL DAMAGE, ARCING OR FLASHOVER: SECONDARY TO PRIMARY AND CORE: 15KVDC MINIMUM; PRIMARY TO CORE: 5KVDC MINIMUM; SECONDARY TO SECONDARY: 5KVDC MINIMUM; INSULATION RESISTANCE SHALL BE 10,000 MEGOHMS MINIMUM. 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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