The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-500-0199, 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 19 specifications, 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-500-0199 |
| Primary Part Number | ASQF-3M |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Arrow Pneumatics Inc |
| Status | ACTIVE |
| Inlet Outside Diameter | 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Inlet Location | CENTRALLY LOCATED IN END OF BODY |
| Coolant Type | AIR |
| Relationship to Similar Equipment | SIMILAR TO NSN 4310-01-307-0177 |
| Design Type | WET |
| 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 | 3/8-14 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Inside Diameter | 0.4375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Functional Description | USED ON THE EXHAUST PORTS OF PNEUMATIC VALVES TO REDUCE NOISE AND PREVENTS CONTAMINATION FROM ENTERING THROUGH THE EXAUST PORT. |
| Material | ALUMINUM LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Location | SLOTS IN THE SIDE OF BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4310-01-500-0199 is a Pneumatic Muffler,exhaust-Intake, manufactured by Arrow Pneumatics Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-500-0199 has 2 manufacturer part numbers on file: 200107 (S & G Enterprises Inc), ASQF-3M (Arrow Pneumatics Inc).
4 possible matches (shared part number, not a government interchangeability claim): 5340-01-615-4915, 4820-01-676-5963, 4820-01-679-3752. Verify interchangeability with system specifications before substitution.
Key specifications for ASQF-3M: Inlet Outside Diameter: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Inlet Location: CENTRALLY LOCATED IN END OF BODY; Coolant Type: AIR; Relationship to Similar Equipment: SIMILAR TO NSN 4310-01-307-0177. 19 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.