The Arrester,spark Exhaust, cataloged under National Stock Number 2990-01-243-1018, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Riker Products Inc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-243-1018 |
| Primary Part Number | SA-4009 |
| Item Name | Arrester,spark Exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Riker Products Inc |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Overall Diameter | 8.500 INCHES NOMINAL IN |
| Body Shape | ROUND |
| Device Design Type | BAFFLE |
| 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 |
|---|---|
| SA-4009 PRIMARY | Riker Products Inc (USA) |
| Reference | Meaning |
|---|---|
| SA-400 | 3/9 Design control — primary reference Riker Products |
NSN 2990-01-243-1018 is a Arrester,spark Exhaust, manufactured by Riker Products Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-243-1018 has 1 manufacturer part number on file: SA-4009 (Riker Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-276-8835. Verify interchangeability with system specifications before substitution.
Key specifications for SA-4009: Operating Position: HORIZONTAL; Overall Diameter: 8.500 INCHES NOMINAL IN; Overall Length: 14.000 INCHES NOMINAL IN; Body Shape: ROUND. 4 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.