PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AC109Altimeter,pressurized Compartmen

Strube Inc · NSN 6685-00-578-5583 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-578-5583 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-578-5583. Primary manufacturer part number: AC109.
Features
  • Altimeter,pressurized Compartmen — FSC 6685
  • Scale Marking: LETTERS AND NUMERALS AND LINED INCREMENTS
  • Nondefinitive Spec/std Data: PE MA2 TYPE
  • Scale Marking Transparency: FLUORESCENT
  • Mechanical Connection Quantity: 1
  • Scale Smallest Increment Graduation: 1000 FT FT
  • Pointer Finish: FLUORESCENT
  • Mechanical Connection Size: 1/8 IN. IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Altimeter,pressurized Compartmen, cataloged under National Stock Number 6685-00-578-5583, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Strube Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-578-5583
Primary Part NumberAC109
Item NameAltimeter,pressurized Compartmen
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerStrube Inc
StatusCANCELLED
Scale MarkingLETTERS AND NUMERALS AND LINED INCREMENTS
Nondefinitive Spec/std DataPE MA2 TYPE
Scale Marking TransparencyFLUORESCENT
Mechanical Connection Quantity1
Scale Smallest Increment Graduation1000 FT FT
Pointer FinishFLUORESCENT
Mechanical Connection Size1/8 IN. IN
Scale Quantity1
Mounting MethodPANEL
Scale NameALTITUDE
Overall Diameter2.000 INCHES NOMINAL IN
Pointer Quantity1
Mechanical Connection TypeINTERNAL TUBE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
4730-00-035-7606 INTERCHANGEABLE
Elbow,flange
5996-00-168-3789 INTERCHANGEABLE
Amplifier,electronic Control
5940-00-196-22859S5259LALT9TYPEMA2 INTERCHANGEABLE
Terminal,lug
Naval Ship Systems Command
6910-00-514-1677 INTERCHANGEABLE
Trainer,b-2 Aircraft Navigationa
1730-00-529-7891 INTERCHANGEABLE
Servicing Unit,mult
4440-00-547-3747MIL-C-4952 INTERCHANGEABLE
Cartridge,dehydrator
Aqw Inc
4440-00-606-9005MA2 INTERCHANGEABLE
Cartridge,dehydrator
Ge Medical Systems
4310-00-696-7633RG9680 INTERCHANGEABLE
Compressor Unit,rotary
Hydro-Aire Aerospace Corp. Dba Lear Romec Div Lear Romec
5940-00-961-047930-222 INTERCHANGEABLE
Splice,conductor
Ideal Industries, Inc.
6350-01-356-9841 INTERCHANGEABLE
Buzzer
Cross-Reference Index
Part NumberManufacturer
AC109 Strube Inc (USA)
P80N Aerosonic Llc (USA)
1521BX4-06 Elbitamerica, Inc. (USA)
NS28010 Strube Inc (USA)
P80A Aerosonic Llc (USA)
6914-385 Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA)
TYPE MA-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MA2 Aerosonic Llc (USA)
MIL-I-25091 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILI25091TYPEMA2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-035-7606INTERCHANGEABLE
ELBOW,FLANGE
5996-00-168-3789INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
5940-00-196-2285INTERCHANGEABLE
TERMINAL,LUG
9S5259LALT9TYPEMA2
6910-00-514-1677INTERCHANGEABLE
TRAINER,B-2 AIRCRAFT NAVIGATIONA
1730-00-529-7891INTERCHANGEABLE
SERVICING UNIT,MULT
4440-00-547-3747INTERCHANGEABLE
CARTRIDGE,DEHYDRATOR
MIL-C-4952
4440-00-606-9005INTERCHANGEABLE
CARTRIDGE,DEHYDRATOR
MA2
4310-00-696-7633INTERCHANGEABLE
COMPRESSOR UNIT,ROTARY
RG9680
5940-00-961-0479INTERCHANGEABLE
SPLICE,CONDUCTOR
30-222
6350-01-356-9841INTERCHANGEABLE
BUZZER

Frequently Asked Questions

What is NSN 6685-00-578-5583?

NSN 6685-00-578-5583 is a Altimeter,pressurized Compartmen, manufactured by Strube Inc, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-578-5583?

NSN 6685-00-578-5583 has 10 cross-referenced part numbers: AC109 (Strube Inc), P80N (Aerosonic Llc), 1521BX4-06 (Elbitamerica, Inc.), NS28010 (Strube Inc), P80A (Aerosonic Llc) and 5 more.

What NSN replaces 6685-00-578-5583?

There are 10 known substitutes for 6685-00-578-5583: 4730-00-035-7606, 5996-00-168-3789, 5940-00-196-2285 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AC109?

Key specifications for AC109: Scale Marking: LETTERS AND NUMERALS AND LINED INCREMENTS; Nondefinitive Spec/std Data: PE MA2 TYPE; Scale Marking Transparency: FLUORESCENT; Mechanical Connection Quantity: 1. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-578-5583 still in active supply?

NSN 6685-00-578-5583 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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