The Exhaust Silencer Set, cataloged under National Stock Number 7910-01-390-3012, is classified within Federal Supply Class 7910 (Floor Polishers and Vacuum Cleaning Equipment) of the Cleaning Equipment and Supplies group. The manufacturer of record is Guardair Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 7910-01-390-3012 |
| Primary Part Number | N711 |
| Item Name | Exhaust Silencer Set |
| FSC / FSG | 7910 / 79 — Floor Polishers and Vacuum Cleaning Equipment |
| Manufacturer | Guardair Corp |
| Status | ACTIVE |
| General Characteristics Item Description | TWO (2) PIECE FOAM INSERTS; SOUND-ABSORBING ACTS AS A MUFFLER TO REDUCE NOISE LEVELS; FITS INSIDE EXTRA SILENT EXHAUST HOUSING; COMPATIBLE WITH 8, 15, 30, AND 55 GALLON NORTECH VACUUMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 7910-01-390-3012 is a Exhaust Silencer Set, manufactured by Guardair Corp, classified under FSC 7910, Floor Polishers and Vacuum Cleaning Equipment. Status: active.
NSN 7910-01-390-3012 has 2 manufacturer part numbers on file: 6352T1 (Mcmaster-Carr Supply Company), N711 (Guardair Corp).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-648-0347. Verify interchangeability with system specifications before substitution.
Key specifications for N711: Overall Height: 15.50 INCHES NOMINAL IN; General Characteristics Item Description: TWO (2) PIECE FOAM INSERTS; SOUND-ABSORBING ACTS AS A MUFFLER TO REDUCE NOISE LEVELS; FITS INSIDE EXTRA SILENT EXHAUST HOUSING; COMPATIBLE WITH 8, 15, 30, AND 55 GALLON NORTECH VACUUMS; Overall Length: 6.00 INCHES NOMINAL IN; Overall Width: 6.00 INCHES NOMINAL IN. 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.