The Inner Tube Assy, cataloged under National Stock Number 4920-01-539-8140, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-01-539-8140 |
| Item Name | Inner Tube Assy |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Relationship to Similar Equipment | UTER TUBE ASSY 14-1135-001 |
| Overall Diameter | 1.820 INCHES MINIMUM IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 14-1135-002 | 3/2 Design control — primary reference U.S. Government activity |
| 14-1135 | D/9 Drawing number reference only U.S. Government activity |
NSN 4920-01-539-8140 is a Inner Tube Assy, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-539-8140: Relationship to Similar Equipment: UTER TUBE ASSY 14-1135-001; Overall Diameter: 1.820 INCHES MINIMUM IN; Overall Length: 40.790 INCHES NOMINAL IN; Special Features: TUBE MATERIAL STAINLESS STEEL 316L;BEARING BRONZE TUBE HOLLOW. 4 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 4920-01-539-8140 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.