The Valve,positive Crankcase Ventila, cataloged under National Stock Number 2990-01-147-9284, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Am General Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-147-9284 |
| Primary Part Number | 12340256 |
| Item Name | Valve,positive Crankcase Ventila |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Design Form | L |
| Connection Type | UNTHREADED EXTERNAL HOSE, BEADED |
| Vehicle Identification Designator | M998 |
| Vehicle Design Control Activity | 19207 |
| Connection Quantity | 2 |
| 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 |
|---|---|
| 12340256 PRIMARY | Am General Llc (USA) |
| 07975FA PRIMARY | Flight System Automotive Group Llc Dba Flight Systems Electronics Group Div Flight Systems Automotive Group Llc (USA) |
| 12340256 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 25042462 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 5578867 | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 25042462 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 25042443 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 2815PL0649730 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2990011479284 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 2990-01-147-9284 is a Valve,positive Crankcase Ventila, manufactured by Am General Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-147-9284 has 5 manufacturer part numbers on file: 12340256 (Am General Llc), 07975FA (Flight System Automotive Group Llc Dba Flight Systems Electronics Group Div Flight Systems Automotive Group Llc), 12340256 (U S Army Tank Automotive Command Amsta-Im-Mm), 25042462 (General Motors Llc Dba General Motors Llc), 5578867 (Am General Llc).
Key specifications for 12340256: Design Form: L; Connection Type: UNTHREADED EXTERNAL HOSE, BEADED; Vehicle Identification Designator: M998; Vehicle Design Control Activity: 19207. 5 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.