The Coupler,heading, cataloged under National Stock Number 6605-01-078-1701, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6605-01-078-1701 |
| Primary Part Number | 2591201-905 |
| Item Name | Coupler,heading |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Honeywell International Inc. Dba Honeywell International |
| Status | ACTIVE |
| General Characteristics Item Description | COMONENTSCAPACITOR 5,CONNECTOR SHELL 1,TRANSFORMER 1,DIODE 8; O/A LG 14.337 IN. NOM; O/A W 7.688 IN. NOM; O/A HT 2.375 IN. NOM; W/HANDLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2591201-905 PRIMARY | Honeywell International Inc. Dba Honeywell International (USA) |
| Reference | Meaning |
|---|---|
| 4K90075-103A | 5/1 Secondary reference U.S. Government activity |
NSN 6605-01-078-1701 is a Coupler,heading, manufactured by Honeywell International Inc. Dba Honeywell International, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-078-1701 has 1 manufacturer part number on file: 2591201-905 (Honeywell International Inc. Dba Honeywell International).
Key specifications for 2591201-905: General Characteristics Item Description: COMONENTSCAPACITOR 5,CONNECTOR SHELL 1,TRANSFORMER 1,DIODE 8; O/A LG 14.337 IN. NOM; O/A W 7.688 IN. NOM; O/A HT 2.375 IN. NOM; W/HANDLE IN; End Item Identification: C5A ACFT. 1 specification is 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.
NSN 6605-01-078-1701 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.