The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-641-6591, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-641-6591 |
| Primary Part Number | SS-4-VCO-9-400 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | ELBOW |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Material | STEEL 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 |
|---|---|
| SS-4-VCO-9-400 PRIMARY | Swagelok Co (USA) |
NSN 4730-01-641-6591 is a Elbow,tube to Boss, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-641-6591 has 1 manufacturer part number on file: SS-4-VCO-9-400 (Swagelok Co).
Key specifications for SS-4-VCO-9-400: Nominal Pipe Size Accommodated: 0.250 INCHES FIRST END IN; Connection Style: GASKET SEAL (BOSS) FIRST END; Connection Style: PLAIN (TUBE) SECOND END; Connection Type: THREADED INTERNAL BOSS FIRST END. 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.