The Fixture,fuel System Components,a, cataloged under National Stock Number 4920-01-127-4639, 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4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-127-4639 |
| Item Name | Fixture,fuel System Components,a |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Nominal Overall Diameter | 0.356 INCHES IN |
| Reference Data and Literature | AGERD 0041-500 |
| Nominal Overall Height | 2.200 INCHES IN |
| Functional Description | GUIDE WILL BE POSITIONED OVER SPLINES OF GEARSHAFT TO GUIDE AND PREVENT DAMAGE TO SEALS DURING INSTALLATION OF THE SEAL |
| 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 |
|---|---|
| 296421-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-127-4639 is a Fixture,fuel System Components,a, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-127-4639: Nominal Overall Diameter: 0.356 INCHES IN; Reference Data and Literature: AGERD 0041-500; Nominal Overall Height: 2.200 INCHES IN; Special Features: C/O A BULLET NOSE PILOT WITH A HOLLOW INSIDE DIA. THAT IS OPEN AT ONE END TO FIT OVER THE OUTSIDE DIA. OF THE GEARSHAFT SPLINE. THE OUTSIDE DIA IS SLIGHTLY LARGER THAN THE GEARSHAFT TO GUIDE SEAL 899353-1 INTO POSITION FOR REPLACEMENT, MFG NAME - SEAL, GUIDE REPLACEMENT. 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.
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.