The Coil,telephone, cataloged under National Stock Number 5950-00-221-4609, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lucent Technologies Inc Corporate Headquarters. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-221-4609 |
| Primary Part Number | 178A1/662 |
| Item Name | Coil,telephone |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Lucent Technologies Inc Corporate Headquarters |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Width | 3.125 INCHES NOMINAL IN |
| Body Height | 2.245 INCHES NOMINAL IN |
| Body Length | 4.500 INCHES NOMINAL IN |
| DC Resistance Rating in Ohms | 4.900 SINGLE COMPONENT ALL WINDING |
| Winding Quantity | 2 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 BINDING POST |
| 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 |
|---|---|
| 178A1/662 PRIMARY | Lucent Technologies Inc Corporate Headquarters (USA) |
| Reference | Meaning |
|---|---|
| 178A1/662 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
| 178A1/662 | 3/9 Design control — primary reference American Telephone and Telegraph Co |
| 12-33E/W662-88MH | 5/9 Secondary reference Coil Sales and Mfg Co |
NSN 5950-00-221-4609 is a Coil,telephone, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-221-4609 has 1 manufacturer part number on file: 178A1/662 (Lucent Technologies Inc Corporate Headquarters).
Key specifications for 178A1/662: Inclosure Type: FULLY INCLOSED; Body Width: 3.125 INCHES NOMINAL IN; Body Height: 2.245 INCHES NOMINAL IN; Body Length: 4.500 INCHES NOMINAL IN. 7 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.