The Overhaul Kit, cataloged under National Stock Number 1650-01-522-1914, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-522-1914 |
| Primary Part Number | 28021-00 |
| Item Name | Overhaul Kit |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | COMPONENTS AND QUANTITY - DIAPHRAGM 2, SEAT 1, FILTER 1, ELBOW ASSEMBLY 1, CONNECTOR 1, WASHER FLAT 2, WASHER SAFETY PLUG 1, PLATE IDENTIFICATION 2, VALVE ASSEMBLY 1, SCREW 2, SCREW PAN HEAD 4, PACKING PREFORMED 2, VALVE SEAT ASSEMBLY 1; VALVE HEAD ASSEMBLY 1, GASKET 1, WASHER TOOTH-LOCK 2, SCREEN REG 1, SCREW SET 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28021-00 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 1650-01-522-1914 is a Overhaul Kit, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-522-1914 has 1 manufacturer part number on file: 28021-00 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for 28021-00: General Characteristics Item Description: COMPONENTS AND QUANTITY - DIAPHRAGM 2, SEAT 1, FILTER 1, ELBOW ASSEMBLY 1, CONNECTOR 1, WASHER FLAT 2, WASHER SAFETY PLUG 1, PLATE IDENTIFICATION 2, VALVE ASSEMBLY 1, SCREW 2, SCREW PAN HEAD 4, PACKING PREFORMED 2, VALVE SEAT ASSEMBLY 1; VALVE HEAD ASSEMBLY 1, GASKET 1, WASHER TOOTH-LOCK 2, SCREEN REG 1, SCREW SET 1; Part Name Assigned by Controlling Agency: OVERHAUL KIT FOR DUAL PURPOSE OXYGEN BREATHING EQUIPMENT. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.