The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-01-686-1623, 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 Seco Seals, Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-686-1623 |
| Primary Part Number | SECO7C12 |
| Item Name | Seal,conical,flared Tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Seco Seals, Inc |
| Status | ACTIVE |
| Style Designator | SEAL |
| Wall Thickness | 0.010 INCHES NOMINAL IN |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Body Length | 0.090 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| SECO7C12 PRIMARY | Seco Seals, Inc (USA) |
| Reference | Meaning |
|---|---|
| SECO 7 | D/9 Drawing number reference only Seco Seals, Inc |
NSN 4730-01-686-1623 is a Seal,conical,flared Tube Fitting, manufactured by Seco Seals, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-686-1623 has 1 manufacturer part number on file: SECO7C12 (Seco Seals, Inc).
Key specifications for SECO7C12: Style Designator: SEAL; Wall Thickness: 0.010 INCHES NOMINAL IN; Outside Diameter: 0.750 INCHES NOMINAL IN; Body Length: 0.090 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN. 5 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.