The Arrester,spark Exhaust, cataloged under National Stock Number 2990-01-298-5449, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Harco Manufacturing Company Div Harco Manufacturing Company Inc. Government technical data includes 16 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-298-5449 |
| Primary Part Number | SASR69-3MPT |
| Item Name | Arrester,spark Exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Harco Manufacturing Company Div Harco Manufacturing Company Inc |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Overall Diameter | 9.500 INCHES NOMINAL IN |
| Inlet Thread Location | EXTERNAL |
| Inlet Projection Length | 1.560 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outlet Outside Diameter | 3.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Inlet Connection Type | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Thread Direction | RIGHT-HAND INLET |
| Body Shape | ROUND |
| Inlet Thread Size | 3/8-16 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CORROSION RESISTING |
| Outlet Projection Length | 1.440 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Device Design Type | DIRECTIONAL VANE |
| Outlet Connection Type | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| 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 |
|---|---|
| 5366604 | Naval Sea Systems Command (USA) |
| SASR69-3MPT PRIMARY | Harco Manufacturing Company Div Harco Manufacturing Company Inc (USA) |
NSN 2990-01-298-5449 is a Arrester,spark Exhaust, manufactured by Harco Manufacturing Company Div Harco Manufacturing Company Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-298-5449 has 2 manufacturer part numbers on file: 5366604 (Naval Sea Systems Command), SASR69-3MPT (Harco Manufacturing Company Div Harco Manufacturing Company Inc).
Key specifications for SASR69-3MPT: Operating Position: HORIZONTAL; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Overall Diameter: 9.500 INCHES NOMINAL IN; Inlet Thread Location: EXTERNAL. 16 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.