The Inlet Silencer Assembly, cataloged under National Stock Number 4310-01-114-4881, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Rix Industries. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Inlet Silencer Assembly |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | Rix Industries (CAGE 28953); Falls Filtration Technologies, Inc. (CAGE 00736) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-114-4881 |
| Primary Part Number | A77-C809 |
| Item Name | Inlet Silencer Assembly |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| 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 |
|---|---|
| A77-C809 PRIMARY | Rix Industries (USA) |
| 204451-001 PRIMARY | Falls Filtration Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 204451-001 | 5/9 Secondary reference Northeast Filter & Equipment Co. |
NSN 4310-01-114-4881 is a Inlet Silencer Assembly, manufactured by Rix Industries, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-114-4881 has 2 manufacturer part numbers on file: A77-C809 (Rix Industries), 204451-001 (Falls Filtration Technologies, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-508-4097. Verify interchangeability with system specifications before substitution.
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.