The Mask,oxygen, cataloged under National Stock Number 1660-00-902-5308, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 12 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.
| Parameter | Value |
|---|---|
| NSN | 1660-00-902-5308 |
| Primary Part Number | 28301-12 |
| Item Name | Mask,oxygen |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Harness | INCLUDED |
| Design Type | NOSE AND MOUTH |
| Helmet Fastener | NOT INCLUDED |
| Mask Size Designation | ADJUSTABLE |
| Microphone | NOT INCLUDED |
| Oxygen System Type | CONSTANT FLOW |
| Accessory Components and Quantity | FLOW INDICATOR 1,CONNECTOR 1 |
| Intake Tube Length | 5.000 INCHES NOMINAL IN |
| Microphone Pocket | NOT INCLUDED |
| Headband | PROVIDED |
| Intake Tube Corrugated Feature | NOT INCLUDED |
| Material | PLASTIC FACEPIECE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28301-12 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 1660-00-902-5308 is a Mask,oxygen, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-902-5308 has 1 manufacturer part number on file: 28301-12 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for 28301-12: Harness: INCLUDED; Design Type: NOSE AND MOUTH; Helmet Fastener: NOT INCLUDED; Mask Size Designation: ADJUSTABLE. 12 specifications are 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.
NSN 1660-00-902-5308 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.