The Cap,tube, cataloged under National Stock Number 4730-01-445-4930, 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 The Boeing Company Div Defense. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-445-4930 |
| Primary Part Number | 75D271001-2031 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE COUPLING, GASKET SEAL |
| Material Document and Classification | ASTM A582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| 75D271001-2031 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75D271001 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-445-4930 is a Cap,tube, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-445-4930 has 1 manufacturer part number on file: 75D271001-2031 (The Boeing Company Div Defense).
Key specifications for 75D271001-2031: Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN; Style Designator: CAP, TUBE COUPLING, GASKET SEAL; Material Document and Classification: ASTM A582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: PASSIVATE OVERALL. 5 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.