The Cap,tube, cataloged under National Stock Number 4730-01-143-4391, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-143-4391 |
| Primary Part Number | CS-4420-SV-0701 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Connection Style | PLAIN (OPTIONAL END) |
| Tube Outside Diameter for Which Designed | 0.880 INCHES NOMINAL IN |
| Style Designator | CAP |
| Material Document and Classification | ASTM A194; GRADE 2H ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.500 INCHES INTERNAL IN |
| Thread Class | 2B INTERNAL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
|---|---|
| CS-4420-SV-0701 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| EW-402P PRIMARY | DC Fabricators Inc (USA) |
| Reference | Meaning |
|---|---|
| EW-402P | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 4730-01-143-4391 is a Cap,tube, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-143-4391 has 2 manufacturer part numbers on file: CS-4420-SV-0701 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), EW-402P (DC Fabricators Inc).
Key specifications for CS-4420-SV-0701: Connection Style: PLAIN (OPTIONAL END); Tube Outside Diameter for Which Designed: 0.880 INCHES NOMINAL IN; Style Designator: CAP; Material Document and Classification: ASTM A194; GRADE 2H ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.