The Freezing Sleeve,rudder Control W, cataloged under National Stock Number 4920-01-178-3480, 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 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-178-3480 |
| Item Name | Freezing Sleeve,rudder Control W |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Overall Diameter | 1.683 INCHES NOMINAL IN |
| General Characteristics Item Description | CYLINDER SHAPED,STEEL; APPROXIMATELY 6.000 IN. LG,1.970 IN. OD,1.683 ID; SPECIALLY DESIGNED IN |
| 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 |
|---|---|
| TX-152264 | 5/9 Secondary reference Moog Inc Div Moog Inc., Space and Defense - Salt Lake City |
| TX-152264 | 5/9 Secondary reference E-Systems Inc Montek Div Fluid Controls Opns |
| TX-152264 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-178-3480 is a Freezing Sleeve,rudder Control W, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-178-3480: Overall Diameter: 1.683 INCHES NOMINAL IN; General Characteristics Item Description: CYLINDER SHAPED,STEEL; APPROXIMATELY 6.000 IN. LG,1.970 IN. OD,1.683 ID; SPECIALLY DESIGNED IN; Overall Length: 6.000 INCHES NOMINAL IN; Special Features: CYLINDER SHAPED,STEEL; 1.683 ID; SPECIALLY DESIGNED. 2 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 4920-01-178-3480 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.