The Flange,exhaust Pipe, cataloged under National Stock Number 2990-01-603-5729, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Stainless Marine, Inc. Dba Stainless Marine Inc Div Stainless Marine & Fixtures, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-603-5729 |
| Primary Part Number | 03-5101291 |
| Item Name | Flange,exhaust Pipe |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Stainless Marine, Inc. Dba Stainless Marine Inc Div Stainless Marine & Fixtures, Inc |
| Status | ACTIVE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 03-5101291 PRIMARY | Stainless Marine, Inc. Dba Stainless Marine Inc Div Stainless Marine & Fixtures, Inc (USA) |
NSN 2990-01-603-5729 is a Flange,exhaust Pipe, manufactured by Stainless Marine, Inc. Dba Stainless Marine Inc Div Stainless Marine & Fixtures, Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-603-5729 has 1 manufacturer part number on file: 03-5101291 (Stainless Marine, Inc. Dba Stainless Marine Inc Div Stainless Marine & Fixtures, Inc).
Key specifications for 03-5101291: Special Features: 5" ANGLED FLANGE-12 DEG/STRAIGHT END S/S INTERNAL SUPER FLAP; Part Name Assigned by Controlling Agency: TIP, EXHAUST; End Item Identification: BOAT, RIGID I; Material: STEEL CORROSION RESISTING. 1 specification is 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.