The Earcup Assy, cataloged under National Stock Number 8475-01-099-1166, is classified within Federal Supply Class 8475 (Specialized Flight Clothing and Accessories) of the Clothing, Individual Equipment, and Insignia 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 8475-01-099-1166 |
| Primary Part Number | 790-301 |
| Item Name | Earcup Assy |
| FSC / FSG | 8475 / 84 — Specialized Flight Clothing and Accessories |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF P/N 790-311 PAD ASSY,EARCUP FILLER; P/N 790-310 GROMMET; P/N 790-305 CUSHION,EARCUP ASSY; P/N 790-319 SHELL ASSY,EARCUP |
| 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 |
|---|---|
| 790-301 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 8475-01-099-1166 is a Earcup Assy, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 8475, Specialized Flight Clothing and Accessories. Status: active.
NSN 8475-01-099-1166 has 1 manufacturer part number on file: 790-301 (Avox Systems Inc Dba Avox Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5910-01-383-9539, 9150-01-498-9301. Verify interchangeability with system specifications before substitution.
Key specifications for 790-301: General Characteristics Item Description: CONSISTS OF P/N 790-311 PAD ASSY,EARCUP FILLER; P/N 790-310 GROMMET; P/N 790-305 CUSHION,EARCUP ASSY; P/N 790-319 SHELL ASSY,EARCUP. 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.
NSN 8475-01-099-1166 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.