The Reducer,tube, cataloged under National Stock Number 4730-01-421-6533, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-421-6533 |
| Primary Part Number | SS-12MO-R-8M |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Nominal Overall Length | 45.9 MILLIMETERS MM |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 12.0 MILLIMETERS FIRST END MM |
| Nominal Outside Diameter Tube Accommodated | 8.0 MILLIMETERS SECOND END MM |
| 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-12M0-R-8M | South London Valve & Fitting Company Ltd T/a Swagelok London (GBR) |
| SS-12MO-R-8M PRIMARY | Swagelok Co (USA) |
| SS-12M0-R-8M | Bristol Fluid Systems Technologies Ltd (GBR) |
| Reference | Meaning |
|---|---|
| SS-12MO-R-8M | 5/9 Secondary reference Swagelok Quick-Connect Co |
NSN 4730-01-421-6533 is a Reducer,tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-6533 has 3 manufacturer part numbers on file: SS-12M0-R-8M (South London Valve & Fitting Company Ltd T/a Swagelok London), SS-12MO-R-8M (Swagelok Co), SS-12M0-R-8M (Bristol Fluid Systems Technologies Ltd).
Key specifications for SS-12MO-R-8M: Nominal Overall Length: 45.9 MILLIMETERS MM; Connection Type: UNTHREADED INTERNAL TUBE SECOND END; Connection Type: THREADED INTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 12.0 MILLIMETERS FIRST END MM. 6 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.