The Compass,magnetic,mounted, cataloged under National Stock Number 6605-01-346-9345, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Firstmark Aerospace Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6605-01-346-9345 |
| Primary Part Number | 2593239 |
| Item Name | Compass,magnetic,mounted |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Firstmark Aerospace Corp |
| Status | ACTIVE |
| Illuminated Feature | NOT INCLUDED |
| Instrument Type | DRY |
| Bowl Element Type | CARD |
| 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 |
|---|---|
| 2593239 PRIMARY | Firstmark Aerospace Corp (USA) |
| Reference | Meaning |
|---|---|
| 2591553-901 | 5/9 Secondary reference Firstmark Aerospace Corp |
| 2593239 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| 2591553-901 | 5/9 Secondary reference U.S. Government activity |
| 2593239 | 5/9 Secondary reference Gtaa Llc Dba Gtaa Llc |
NSN 6605-01-346-9345 is a Compass,magnetic,mounted, manufactured by Firstmark Aerospace Corp, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-346-9345 has 1 manufacturer part number on file: 2593239 (Firstmark Aerospace Corp).
1 possible match (shared part number, not a government interchangeability claim): 2930-01-686-6676. Verify interchangeability with system specifications before substitution.
Key specifications for 2593239: Illuminated Feature: NOT INCLUDED; End Item Identification: C-135 STRATOLIFTER AIRCRAFT; Instrument Type: DRY; Bowl Element Type: CARD. 3 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.