The Adapter Guide,aircr, cataloged under National Stock Number 4920-01-477-9986, 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3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-477-9986 |
| Item Name | Adapter Guide,aircr |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Overall Diameter | 10.960 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| 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 | Y |
| Reference | Meaning |
|---|---|
| 21C14227G03 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-477-9986 is a Adapter Guide,aircr, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-477-9986: Overall Height: 5.250 INCHES NOMINAL IN; Overall Diameter: 10.960 INCHES NOMINAL IN; Criticality Code Justification: AGAV; Special Features: DISC WITH SIX (6) 5/16" THREADED HOLES IN THREE (3) EQUAL PLANES FOR MOUNTING THE HUB; HUB WELDMENT OF A 4" X 4" TUBE ON AN 11" DISC WITH CAP SCREW CLEARANCE HOLES CONCENTRIC WITH GUIDE ADAPTER DISC CAP SCREW HOLES; USED TO SUPPORT THE COMPRESSOR MOTOR WHILE IN THE ENGINE BUILDUP STAND. 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.
NSN 4920-01-477-9986 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.