The Coil,telephone, cataloged under National Stock Number 5950-00-189-5815, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telemechanics Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-189-5815 |
| Primary Part Number | 637015 |
| Item Name | Coil,telephone |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Body Width | 1.688 INCHES NOMINAL IN |
| Body Height | 4.281 INCHES NOMINAL IN |
| Distance Between Mounting Facility Centers | 0.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 1.688 INCHES NOMINAL IN |
| DC Resistance Rating in Ohms | 440.000 SINGLE COMPONENT SECOND WINDING |
| DC Resistance Rating in Ohms | 81.000 SINGLE COMPONENT FIRST WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Winding Quantity | 2 SINGLE COMPONENT |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| 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 |
|---|---|
| 637015 | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 637015 | 5/9 Secondary reference At and T Corp |
| D162256 | 5/9 Secondary reference At and T Corp |
| ES0637015SPECIALD162256 | 5/9 Secondary reference At and T Corp |
| 637015 | 5/9 Secondary reference American Telephone and Telegraph Co |
| D162256 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| ES0637015SPECIALD162256 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| ES0637015SPECIALD162256 | 3/9 Design control — primary reference American Telephone and Telegraph Co |
| D162256 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5950-00-189-5815 is a Coil,telephone, manufactured by Telemechanics Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-189-5815 has 1 manufacturer part number on file: 637015 (Telemechanics Inc).
1 possible match (shared part number, not a government interchangeability claim): 2840-00-593-2522. Verify interchangeability with system specifications before substitution.
Key specifications for 637015: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Body Width: 1.688 INCHES NOMINAL IN. 14 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.