The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4330-01-278-5889, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-278-5889 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| Muffler Design | STRAIGHT THROUGH W/BAFFLE |
| Inlet Connection Type | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Body Shape | TAPERED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4612-0012 | 3/9 Design control — primary reference Scovill Inc Schrader Bellows Div |
NSN 4330-01-278-5889 is a Pneumatic Muffler,exhaust-Intake, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
Key specifications for 4330-01-278-5889: Overall Length: 2.250 INCHES NOMINAL IN; Muffler Design: STRAIGHT THROUGH W/BAFFLE; Inlet Connection Type: THREADED LOCATION NOT OTHERWISE SPECIFIED; Body Shape: TAPERED. 3 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 4330-01-278-5889 has DEMIL Code Q. 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.