The Stop,aft, cataloged under National Stock Number 4920-01-412-7251, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is General Electric Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-412-7251 |
| Primary Part Number | 3C3851P71 |
| Item Name | Stop,aft |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | General Electric Co |
| Status | ACTIVE |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3C3851P71 PRIMARY | General Electric Co (USA) |
| Reference | Meaning |
|---|---|
| 3C3851 | D/9 Drawing number reference only General Electric Co |
NSN 4920-01-412-7251 is a Stop,aft, manufactured by General Electric Co, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-412-7251 has 1 manufacturer part number on file: 3C3851P71 (General Electric Co).
2 possible matches (shared part number, not a government interchangeability claim): 4920-01-412-7839, 4920-01-414-9396. Verify interchangeability with system specifications before substitution.
Key specifications for 3C3851P71: Overall Height: 6.380 INCHES NOMINAL IN; Overall Length: 2.500 INCHES NOMINAL IN; Overall Width: 2.000 INCHES NOMINAL IN; Special Features: C/O PLATE AND BLOCK,INSEPARABLE ASSY; 2 HOLES 0.374 IN DIA DRILLED THRU VERTICAL PIECE; 4 HOLES 0.281 IN DIA DRILLED THRU BLOCK WITH 0.406 IN BY 0.300 IN DEEP COUNTERBORE IN. 1 specification is 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.