The Exhaust System,engine, cataloged under National Stock Number 2990-01-475-9360, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-475-9360 |
| Item Name | Exhaust System,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| General Characteristics Item Description | PORT; RING ASSY 18.000 INS NOM; UPPER COMPANION PIPE FLANGE 24.000 INS OD X 18.000 INS ID; LOWER COMPANION PIPE FLANGE 24.000 INS OD X 20.000 INS ID |
| Accessory Components and Quantity | 2990-01-460-0205 FLANGE,COMPANION PIPE,UPPER 1; 5330-01-475-8157 GASKET,UPPER FLANGE 1; 5330-01-475-8169 GASKET,LOWER FLANGE 1; 2990-01-460-0214 FLANGE,COMPANION PIPE,LOWER 1; 2990-01-475-9621 SPRAYRING ASSEMBLY,PORT 1 |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 110WPB259-005-P | 3/2 Design control — primary reference U.S. Government activity |
NSN 2990-01-475-9360 is a Exhaust System,engine, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-475-9360: General Characteristics Item Description: PORT; RING ASSY 18.000 INS NOM; UPPER COMPANION PIPE FLANGE 24.000 INS OD X 18.000 INS ID; LOWER COMPANION PIPE FLANGE 24.000 INS OD X 20.000 INS ID; Overall Length: 9.825 INCHES NOMINAL IN; Accessory Components and Quantity: 2990-01-460-0205 FLANGE,COMPANION PIPE,UPPER 1; 5330-01-475-8157 GASKET,UPPER FLANGE 1; 5330-01-475-8169 GASKET,LOWER FLANGE 1; 2990-01-460-0214 FLANGE,COMPANION PIPE,LOWER 1; 2990-01-475-9621 SPRAYRING ASSEMBLY,PORT 1; End Item Identification: GUTLESS EXHAUST ASSEMBLY ONBOARD 110 FT WPB "A" & "B" CLASS COAST GUARD VESSELS FT. 3 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.