The Cap,filler Opening, cataloged under National Stock Number 2930-01-039-1580, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2930-01-039-1580 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Status | ACTIVE |
| Accommodation Type | HANDLE END GRIPPING |
| Style Designator | INSIDE CAM TYPE W/ HANDLE |
| Filler Neck Diameter for Which Designed | 2.250 INCHES NOMINAL IN |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Cam Quantity | 2 |
| Features Provided | INTEGRAL VACUUM RELIEF VALVE AND SEAL |
| System for Which Designed | PRESSURIZED |
| Pressure Relief Method | AUTOMATIC |
| Surface Treatment | CADMIUM BODY |
| Maximum Working Pressure | 7.000 POUNDS PER SQUARE INCH (PSI) LBS |
| Special Markings | 7 LBS,REMOVE SLOWLY LBS |
| Material | COPPER ALLOY AND STEEL BODY |
| Material | ALUMINUM ALLOY HANDLE |
| Sealing Length | 0.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| 428975C91 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2930-01-039-1580 is a Cap,filler Opening, classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
Key specifications for 2930-01-039-1580: Overall Height: 2.562 INCHES NOMINAL IN; Accommodation Type: HANDLE END GRIPPING; Style Designator: INSIDE CAM TYPE W/ HANDLE; Filler Neck Diameter for Which Designed: 2.250 INCHES NOMINAL IN. 14 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.