The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-459-0542, 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 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-459-0542 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Nominal Overall Length | 19.500 INCHES IN |
| Reference Data and Literature | ATF3-6/6A 72-TE-01 PAGE 106 A |
| Functional Description | ITEM ENGAGES THREE REMOVAL LOBES ON THE NO. 2 AFT SEAL RETAINER. IMPACT ACTION WILL THEN PULL THE RETAINER AND ASSEMBLED NO. 2 AFT CARBON SEAL FROM BEARING SUPPORT AGAINST THE FRICTION OF THE PACKING WITHOUT REMOVING THE FAN TURBINE MODULE. THESE ARE COMPONENTS OF THE FRONT FRAME AND NO. 1 AND NO. 2 SUMP MODULE |
| 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 |
|---|---|
| 294571-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-459-0542 is a Fixture,aircraft Maintenance, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-459-0542: Nominal Overall Length: 19.500 INCHES IN; Reference Data and Literature: ATF3-6/6A 72-TE-01 PAGE 106 A; Functional Description: ITEM ENGAGES THREE REMOVAL LOBES ON THE NO. 2 AFT SEAL RETAINER. IMPACT ACTION WILL THEN PULL THE RETAINER AND ASSEMBLED NO. 2 AFT CARBON SEAL FROM BEARING SUPPORT AGAINST THE FRICTION OF THE PACKING WITHOUT REMOVING THE FAN TURBINE MODULE. THESE ARE COMPONENTS OF THE FRONT FRAME AND NO. 1 AND NO. 2 SUMP MODULE; End Item Identification: HU-25 COAST GUARD AIRCRAFT. 3 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.