NSN 6340-01-575-1737 · NIIN 015751737 · Part number MD422
Mid-Continent Instrument Co Inc · FSC 6340 — Aircraft Alarm and Signal Systems · FSG 63 — Alarm, Signal, and Security Detection Systems · CAGE 59742
Government record, cited
NSN 6340-01-575-1737 — this item is cataloged by the U.S. Government under National Stock Number 6340-01-575-1737. Manufacturer of record part number: MD422.
Also searched as6340-01-575-1737 ·
6340015751737 ·
NIIN 015751737 ·
01-575-1737 ·
FSC 6340 Aircraft Alarm and Signal Systems · CAGE 59742 · MD422
Mounting Configuration: WITHIN PILOT'S NORMAL LINE OF SIGHT,VIEWING ANGLES IN EXCESS OF 30 DEGREES MAY REDUCE READABILITY
Mounting Type: PANEL
1 manufacturer part number on file
Manufacturer of record: Mid-Continent Instrument Co Inc
Identification
NSN: 6340-01-575-1737
NIIN: 015751737
FSC: 6340 — Aircraft Alarm and Signal Systems
FSG: 63 — Alarm, Signal, and Security Detection Systems
Primary part number: MD422
Manufacturer: Mid-Continent Instrument Co Inc
General Description
The Annunciator, cataloged under National Stock Number 6340-01-575-1737, is classified within Federal Supply Class 6340 (Aircraft Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Mid-Continent Instrument Co Inc. Government technical data includes 4 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6340-01-575-1737
Primary Part Number
MD422
Item Name
Annunciator
FSC / FSG
6340 / 63 — Aircraft Alarm and Signal Systems
Manufacturer
Mid-Continent Instrument Co Inc
Status
ACTIVE
Visual Signal Type
REGULAR FLASHING
Signal Device Quantity
1
Mounting Configuration
WITHIN PILOT'S NORMAL LINE OF SIGHT,VIEWING ANGLES IN EXCESS OF 30 DEGREES MAY REDUCE READABILITY
Other items in FSC 6340 — Aircraft Alarm and Signal Systems
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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6340-00-003-1931 · Item name not on file
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6340-00-003-1932 · Item name not on file
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6340-00-003-9686 · Item name not on file
6340-00-004-4880
6340-00-004-4880 · Item name not on file
6340-00-004-9729
SENSING ELEMENT,FIRE DETECTOR SY
Frequently Asked Questions
What is NSN 6340-01-575-1737?
NSN 6340-01-575-1737 is a Annunciator, manufactured by Mid-Continent Instrument Co Inc, classified under FSC 6340, Aircraft Alarm and Signal Systems. Status: active.
What part numbers are listed for NSN 6340-01-575-1737?
NSN 6340-01-575-1737 has 1 manufacturer part number on file: MD422 (Mid-Continent Instrument Co Inc).
What are the specifications of MD422?
Key specifications for MD422: Overall Height: 0.800 INCHES MAXIMUM IN; Visual Signal Type: REGULAR FLASHING; Overall Length: 3.000 INCHES MAXIMUM IN; Overall Width: 1.650 INCHES MAXIMUM IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 6340-01-575-1737 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.