The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4730-01-531-5113, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Dixon Valve & Coupling Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Dixon Valve & Coupling Co (CAGE 0JPJ8) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-531-5113 |
| Primary Part Number | CMF38 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dixon Valve & Coupling Co |
| 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 |
|---|---|
| CMF38 PRIMARY | Dixon Valve & Coupling Co (USA) |
| Reference | Meaning |
|---|---|
| 1600134 | D/9 Drawing number reference only U.S. Government activity |
| 1600134-68 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-531-5113 is a Pneumatic Muffler,exhaust-Intake, manufactured by Dixon Valve & Coupling Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-531-5113 has 1 manufacturer part number on file: CMF38 (Dixon Valve & Coupling Co).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-531-7298, 9330-01-656-0594. 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.