The Cap,tube, cataloged under National Stock Number 4730-01-342-3448, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is General Electric Company. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-342-3448 |
| Primary Part Number | 3C3543P04 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Tube Outside Diameter for Which Designed | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.562 INCHES INTERNAL IN |
| Thread Class | 2B INTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF INTERNAL |
| 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 |
|---|---|
| 3C3543P04 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 3C3543 | D/9 Drawing number reference only General Electric Company |
NSN 4730-01-342-3448 is a Cap,tube, manufactured by General Electric Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-342-3448 has 1 manufacturer part number on file: 3C3543P04 (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-342-4026, 4720-01-356-0712. Verify interchangeability with system specifications before substitution.
Key specifications for 3C3543P04: Tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND INTERNAL; Nominal Thread Size: 0.562 INCHES INTERNAL IN; Special Features: INSERT 0.500 IN. DEEP 0.164 IN.-32UNC-2B THREADS IN. 6 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.