The Cap,tube, cataloged under National Stock Number 4730-01-074-0366, 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 Swagelok Co. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-074-0366 |
| Primary Part Number | B-400-C |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Connection Style | PRESSURE SEAL FLARELESS |
| Tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARELESS |
| Features Provided | NUT |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Nominal Thread Size | 0.438 INCHES EXTERNAL IN |
| Seat Angle | 20.0 DEGREES |
| Thread Class | 2A EXTERNAL A |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF EXTERNAL |
| 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 |
|---|---|
| B-400-C PRIMARY | Swagelok Co (USA) |
| B37092-004 | Pacific Consolidated Industries Llc (USA) |
NSN 4730-01-074-0366 is a Cap,tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-074-0366 has 2 manufacturer part numbers on file: B-400-C (Swagelok Co), B37092-004 (Pacific Consolidated Industries Llc).
Key specifications for B-400-C: Connection Style: PRESSURE SEAL FLARELESS; Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARELESS; Features Provided: NUT. 10 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.