The Diaphragm,deceleration Valve,emi, cataloged under National Stock Number 2990-01-342-8194, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-342-8194 |
| Item Name | Diaphragm,deceleration Valve,emi |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| C3AZ-9B559A | C/1 Advisory reference — outside the item-of-supply concept Ford Motor Company |
| C3AZ-9B559A | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
NSN 2990-01-342-8194 is a Diaphragm,deceleration Valve,emi, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-342-8194: Special Features: MATERIAL:STEEL AND RUBBER; WIDTH:1.500 IN.; LENGTH:1.500 IN.; WITH TWO STAINLESS STEEL PINS; PART OF EMISSION CONTROL SYSTEM IN; End Item Identification: USED ON 1963 FORD TRUCKS. 0 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.