The Reactor, cataloged under National Stock Number 5950-00-648-0312, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microwave Engineering Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-648-0312 |
| Primary Part Number | 12121-1 |
| Item Name | Reactor |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Inductance Rating | 1.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Body Width | 1.000 INCHES NOMINAL IN |
| Body Height | 1.375 INCHES NOMINAL IN |
| Distance Between Mounting Facility Centers | 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 1.000 INCHES NOMINAL IN |
| Winding Operating Current | 25.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE WINDING |
| DC Resistance Rating in Ohms | 100.000 SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 1 SINGLE COMPONENT |
| Terminal Type and Quantity | 2 STANDOFF, SOLDER LUG |
| Inductance Type | FIXED |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| 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 |
|---|---|
| 12121-1 PRIMARY | Microwave Engineering Corporation (USA) |
| T70030-1 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 12121-1 | 3/9 Design control — primary reference U.S. Government activity |
| T70030-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5950-00-648-0312 is a Reactor, manufactured by Microwave Engineering Corporation, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-648-0312 has 2 manufacturer part numbers on file: 12121-1 (Microwave Engineering Corporation), T70030-1 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5342-01-172-3483. Verify interchangeability with system specifications before substitution.
Key specifications for 12121-1: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Mounting Method: THREADED STUD(S) SINGLE GROUP; Inductance Rating: 1.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING. 17 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.