The Transformer,discriminator, cataloged under National Stock Number 5950-00-505-0263, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-505-0263 |
| Primary Part Number | 2645-4-1 |
| Item Name | Transformer,discriminator |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Inclosure Type | OPEN |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Adjustment Device Drive Type | HEX NUT SINGLE COMPONENT |
| Body Width | 1.375 INCHES NOMINAL IN |
| Body Height | 3.312 INCHES NOMINAL IN |
| Adjustment Method and Quantity | 2 ADJUSTABLE CORE SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 1.938 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 6.0 MEGAHERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 4 SOLDER STUD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2645-4-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| FTC141-4005 | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| C2645-4-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 02645-4-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 2645-4-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 2645-4-1 | 5/9 Secondary reference Scomill Inc |
NSN 5950-00-505-0263 is a Transformer,discriminator, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-505-0263 has 2 manufacturer part numbers on file: 2645-4-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), FTC141-4005 (Viking Technologies, Ltd.).
2 possible matches (shared part number, not a government interchangeability claim): 2520-00-679-7927, 3040-00-782-1220. Verify interchangeability with system specifications before substitution.
Key specifications for 2645-4-1: Inclosure Type: OPEN; Mounting Method: THREADED STUD(S) SINGLE GROUP; Adjustment Device Drive Type: HEX NUT SINGLE COMPONENT; Body Width: 1.375 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.