The Cap,filler Opening, cataloged under National Stock Number 2935-01-166-5369, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2935-01-166-5369 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Status | ACTIVE |
| Accommodation Type | KNURLED END GRIPPING |
| Retaining Device Type | CHAIN |
| Filler Neck Diameter for Which Designed | 1.000 INCHES NOMINAL IN |
| Thread Diameter | 1.062 INCHES NOMINAL IN |
| Outside Diameter | 1.380 INCHES NOMINAL IN |
| System for Which Designed | PRESSURIZED |
| Pressure Relief Method | AUTOMATIC |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A A |
| Special Markings | RED DEPRESSIONS ALIGN WHEN CAP IS INSTALLED PROPERLY |
| Material | ALUMINUM ALLOY OVERALL |
| Retaining Device Length | 6.000 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| Thread Quantity | 12 PER INCH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B7238WA | 3/2 Design control — primary reference U.S. Government activity |
| 361-530-9301 | 5/2 Secondary reference U.S. Government activity |
NSN 2935-01-166-5369 is a Cap,filler Opening, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
Key specifications for 2935-01-166-5369: Accommodation Type: KNURLED END GRIPPING; Retaining Device Type: CHAIN; Filler Neck Diameter for Which Designed: 1.000 INCHES NOMINAL IN; Thread Diameter: 1.062 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.
NSN 2935-01-166-5369 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.