NSN 2990-01-128-4623 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-128-4623. Manufacturer of record part number: 2587331.
The Guard Assembly,engine Exhaust, cataloged under National Stock Number 2990-01-128-4623, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Fmc Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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CRANK,HAND,VEHICULAR
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MUFFLER,EXHAUST
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MUFFLER,EXHAUST
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BLOCK,ADJUSTING SCREW
2990-00-903-8226
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CONNECTOR,EXHAUST PIPE
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CONNECTOR,EXHAUST PIPE
Frequently Asked Questions
What is NSN 2990-01-128-4623?
NSN 2990-01-128-4623 is a Guard Assembly,engine Exhaust, manufactured by Fmc Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
What part numbers are listed for NSN 2990-01-128-4623?
NSN 2990-01-128-4623 has 2 manufacturer part numbers on file: 2587331 (Naval Sea Systems Command), 2587331 (Fmc Corp).
What are the specifications of 2587331?
Key specifications for 2587331: General Characteristics Item Description: MATERIAL,CRES; 7.000 IN OD,6.750 IN. ID,0.500 IN. HIGH TO BOTTOM OF WIRE CLOTH IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2990-01-128-4623 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.