The Altimeter,pressurized Compartmen, cataloged under National Stock Number 6685-00-148-9729, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kearflex Engineering Company. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-148-9729 |
| Primary Part Number | 2109-2A |
| Item Name | Altimeter,pressurized Compartmen |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Kearflex Engineering Company |
| Status | ACTIVE |
| Scale Marking Transparency | NONLUMINOUS |
| Scale Marking | LETTERS AND NUMERALS AND LINED INCREMENTS |
| Nondefinitive Spec/std Data | AAU-3A/A TYPE A |
| Specification/standard Data | 81349-MIL-A-25933 GOVERNMENT SPECIFICATION AND 98810-24194 MANUFACTURERS SPECIFICATION |
| Nonluminous Scale Marking and Color | NUMERALS WHITE |
| Mounting Method | THREADED BEZEL |
| Contact Type | PIN |
| Nonluminous Scale Marking and Color | LETTERS WHITE |
| Electrical Connection Identifying Number | DM5600-3P OR EQUIVALENT |
| Scale Quantity | 1 |
| Scale Smallest Increment Graduation | 1000 FEET FT |
| Mechanical Connection Quantity | 1 |
| Overall Diameter | 2.180 INCHES NOMINAL IN |
| Scale Name | CABIN PRESSURE ALTITUDE |
| Mechanical Connection Size | 7/16-20 UNF PER MS33649-4 |
| Pointer Color | WHITE |
| Mechanical Connection Type | INTERNAL UNF BOSS |
| Nonluminous Scale Marking and Color | LINED INCREMENTS WHITE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AAU-3A/A | Joint Electronics Type Designation System (USA) |
| 2109-2A PRIMARY | Kearflex Engineering Company (USA) |
| MIL-A-25933 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 6685PL0626515 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
NSN 6685-00-148-9729 is a Altimeter,pressurized Compartmen, manufactured by Kearflex Engineering Company, classified under FSC 6685 (No Item Name Available). Status: active.
NSN 6685-00-148-9729 has 4 cross-referenced part numbers: AAU-3A/A (Joint Electronics Type Designation System), 2109-2A (Kearflex Engineering Company), MIL-A-25933 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6685PL0626515 (Jednolity Indeks Materialowy - Uniform Material Index).
There are 6 known substitutes for 6685-00-148-9729: 6685-00-078-0098, 5840-00-203-1201, 6685-00-226-5700 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2109-2A: Scale Marking Transparency: NONLUMINOUS; Scale Marking: LETTERS AND NUMERALS AND LINED INCREMENTS; Nondefinitive Spec/std Data: AAU-3A/A TYPE A; Specification/standard Data: 81349-MIL-A-25933 GOVERNMENT SPECIFICATION AND 98810-24194 MANUFACTURERS SPECIFICATION. 23 total characteristics are documented in the Federal Logistics Information System.