The Cap,tube, cataloged under National Stock Number 4730-00-679-0235, 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 Tylok International, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-679-0235 |
| Primary Part Number | NY4-1F-PLUG |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Tylok International, Inc. |
| Status | ACTIVE |
| Connection Style | PRESSURE SEAL FLARELESS |
| Tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARELESS |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.438 INCHES INTERNAL IN |
| Seat Angle | 20.0 DEGREES |
| Thread Class | 3B INTERNAL |
| Material | PLASTIC POLYAMIDE NYLON 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 |
|---|---|
| NY4-1F-PLUG PRIMARY | Tylok International, Inc. (USA) |
| GP525B4 | Northrop Grumman Systems Corporation (USA) |
| NY-400-P PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| ZY400P | 5/9 Secondary reference Swagelok Co |
| 4 FNZ-NY | 5/9 Secondary reference Parker-Hannifin Corporation Div Instrumentation Products Division |
NSN 4730-00-679-0235 is a Cap,tube, manufactured by Tylok International, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-679-0235 has 3 manufacturer part numbers on file: NY4-1F-PLUG (Tylok International, Inc.), GP525B4 (Northrop Grumman Systems Corporation), NY-400-P (Swagelok Co).
Key specifications for NY4-1F-PLUG: Connection Style: PRESSURE SEAL FLARELESS; Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARELESS; Thread Direction: RIGHT-HAND INTERNAL. 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.