The Valve,positive Crankcase Ventila, cataloged under National Stock Number 2990-01-509-4516, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Slidell Marine 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-509-4516 |
| Primary Part Number | 12340-ZW5-000 |
| Item Name | Valve,positive Crankcase Ventila |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Slidell Marine Inc |
| Status | ACTIVE |
| Design Form | STRAIGHT |
| 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 |
|---|---|
| 12340-ZW5-000 PRIMARY | Slidell Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| 12340-ZW5-000 | 5/9 Secondary reference American Honda Motor Co Inc |
NSN 2990-01-509-4516 is a Valve,positive Crankcase Ventila, manufactured by Slidell Marine Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-509-4516 has 1 manufacturer part number on file: 12340-ZW5-000 (Slidell Marine Inc).
Key specifications for 12340-ZW5-000: Design Form: STRAIGHT; Special Features: MFG PART NAME IS CHAMBER, PCV; NHA CYLINDER BLOCK-ZW54E0300B; END ITEM IS ENGINE, OUTBOARD, MDL BF130A2XA, STND ROTATION AND ENGINE, OUTBOARD, MDL BF103A2XCA, COUNTER ROTATION. 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.