The Bushing,pipe, cataloged under National Stock Number 4730-01-099-2399, 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 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-099-2399 |
| Primary Part Number | SS-4-RB-2 |
| Item Name | Bushing,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Internal Screw Thread Series Designator | NPTF |
| Internal Thread Direction | RIGHT-HAND |
| Style Designator | OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL) |
| External Screw Thread Series Designator | NPTF |
| External Thread Size | 0.250-18 |
| Internal Thread Size | 0.125-27 |
| Material | STEEL |
| External Thread Direction | RIGHT-HAND |
| 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 |
|---|---|
| 13056579 | Raytheon Company (USA) |
| SS-4-RB-2 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 000-8007-139 | 5/2 Secondary reference U.S. Government activity |
| 13056579 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| SS-4-RB-2 | 5/9 Secondary reference Cajon Co |
NSN 4730-01-099-2399 is a Bushing,pipe, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-099-2399 has 2 manufacturer part numbers on file: 13056579 (Raytheon Company), SS-4-RB-2 (Swagelok Co).
Key specifications for SS-4-RB-2: Internal Screw Thread Series Designator: NPTF; Internal Thread Direction: RIGHT-HAND; Style Designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL); External Screw Thread Series Designator: NPTF. 8 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.