National Stock Number
4310-01-297-1601
National Stock Number (NSN) 4310-01-297-1601, or NIIN 012971601, (pneumatic muffler,exhaust-intake) was assigned March 29, 1989 in the Federal Logistics Information System (FLIS). NIIN 012971601 was cancelled on March 2, 2001, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4310004673031. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 37112. [A NOISE CONTROL/FILTERING DEVICE OF VARIOUS SIZES, SHAPES, DESIGNS, MATERIALS (METALLIC/NON-METALLIC) AND VARIED MOUNTING CONFIGURATIONS USED TO DIFFUSE AIR BLASTS, LOWERS AIR VELOCITY, REDUCE NOISE, FILTRATION OF AIRBORNE MOISTURE AND/OR DUST CONTAMINATION, PRESSURE EQUALIZATION, SPEED CONTROL FOR AIR OPERATED DEVICES. FOR VEHICULAR APPLICATION SEE MUFFLER, (AS MODIFIED).]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4310012971601 does not contain precious metals.
This information was last updated on May 01, 2025.