The Adapter,straight,flange to Flang, cataloged under National Stock Number 4730-01-421-2600, 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 Portland Valve Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-421-2600 |
| Primary Part Number | 1220D1117 |
| Item Name | Adapter,straight,flange to Flang |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Flange Face Design | PLAIN FIRST END |
| Bolt Circle Nominal Diameter | 9.000 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 4.000 INCHES SECOND END IN |
| Nominal Overall Length | 11.000 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Material Document and Classification | MIL-C-20159 TYPE II(90-10) MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.531 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 10.750 INCHES FIRST END IN |
| Nominal Outside Diameter | 6.750 INCHES SECOND END IN |
| Bolt Hole Quantity | 6 FIRST END |
| Bolt Hole Quantity | 4 SECOND END |
| Material | COPPER ALLOY OVERALL |
| Raised Face Nominal Diameter | 2.100 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.245 INCHES SECOND END IN |
| Nominal Thickness | 0.500 INCHES SECOND END IN |
| Nominal Thickness | 1.000 INCHES FIRST END IN |
| 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 |
|---|---|
| 1220D1117 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 1220D1117 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1220D1117 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-421-2600 is a Adapter,straight,flange to Flang, manufactured by Portland Valve Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-2600 has 1 manufacturer part number on file: 1220D1117 (Portland Valve Llc).
Key specifications for 1220D1117: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT SECOND END; Flange Face Design: PLAIN FIRST END; Bolt Circle Nominal Diameter: 9.000 INCHES FIRST END IN. 18 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.