The Muffler,exhaust, cataloged under National Stock Number 2990-01-531-4626, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Arrow Pneumatics Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-531-4626 |
| Primary Part Number | ASP-4 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Arrow Pneumatics Inc |
| Status | ACTIVE |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AMD-1588 PC 12 | Appleton Marine Inc (USA) |
| ASP-4 PRIMARY | Arrow Pneumatics Inc (USA) |
NSN 2990-01-531-4626 is a Muffler,exhaust, manufactured by Arrow Pneumatics Inc, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-531-4626 has 2 cross-referenced part numbers: AMD-1588 PC 12 (Appleton Marine Inc), ASP-4 (Arrow Pneumatics Inc).
There are 3 known substitutes for 2990-01-531-4626: 5340-00-582-7717, 5340-00-817-0912, 4520-01-341-8735. Verify interchangeability with system specifications before substitution.
Key specifications for ASP-4: Overall Length: 1.875 INCHES NOMINAL IN; End Item Identification: FLEXOR HOUSING ASSY 1600135-1; Special Features: QUIET FLOW MUFFLER/FILTERS UTILIZE POROUS SINTERED BRONZE DIRECTLY BONDED TO NICKEL PLATED STEEL PIPE THREAD FILLINGS TO DIFFUSE AIR AND MUFFLE NOISE. MAXIMUM OPERATING PRESSURE: 300 PSI. OPERATING TEMPERATURES: 35 DEGREES FAHRENHIET TO 300 DEGREES FAHRENHIET. THREAD SIZE: 1/2 INCH. OVERALL LENGTH: 1 7/8 INCHES. DIAMETER: 7/8 INCH. WEIGHT: 0.10 LBS. LBS; Overall Diameter: 0.875 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.