The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4330-01-472-6930, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Arrow Pneumatics Inc. Government technical data includes 7 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. 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 | 4330-01-472-6930 |
| Primary Part Number | ASP-8 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Arrow Pneumatics Inc |
| Status | ACTIVE |
| Inlet Thread Location | EXTERNAL LOCATION NOT OTHERWISE SPECIFIED |
| Muffler Design | STRAIGHT THROUGH |
| Thread Direction | RIGHT-HAND INLET |
| Body Shape | TAPERED |
| Inlet Thread Size | 1-11-1/2 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Material | COPPER ALLOY AND STEEL LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| ASP-8 PRIMARY | Arrow Pneumatics Inc (USA) |
NSN 4330-01-472-6930 is a Pneumatic Muffler,exhaust-Intake, manufactured by Arrow Pneumatics Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-472-6930 has 1 manufacturer part number on file: ASP-8 (Arrow Pneumatics Inc).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-474-0522. Verify interchangeability with system specifications before substitution.
Key specifications for ASP-8: Overall Height: 2.8750 INCHES NOMINAL IN; Inlet Thread Location: EXTERNAL LOCATION NOT OTHERWISE SPECIFIED; Overall Length: 2.8750 INCHES NOMINAL IN; Overall Width: 1.325 INCHES NOMINAL IN. 7 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.
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.