The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-307-0177, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Arrow Pneumatics Inc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-307-0177 |
| Primary Part Number | ASQF-4M |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Arrow Pneumatics Inc |
| Status | ACTIVE |
| Inlet Location | CENTRALLY LOCATED IN END OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Inlet Connection Quantity | 1 |
| Inlet Thread Location | EXTERNAL LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Projection Length | 0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Muffler Design | STRAIGHT THROUGH |
| Inlet Connection Type | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Thread Direction | RIGHT-HAND INLET |
| Body Shape | ROUND |
| Inlet Thread Size | 0.500-14 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Material | ALUMINUM 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 |
|---|---|
| ASQF-4M PRIMARY | Arrow Pneumatics Inc (USA) |
NSN 4310-01-307-0177 is a Pneumatic Muffler,exhaust-Intake, manufactured by Arrow Pneumatics Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-307-0177 has 1 manufacturer part number on file: ASQF-4M (Arrow Pneumatics Inc).
Key specifications for ASQF-4M: Inlet Location: CENTRALLY LOCATED IN END OF BODY; Coolant Type: AIR; Design Type: DRY; Overall Diameter: 1.250 INCHES NOMINAL IN. 14 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.