The Elbow,flange, cataloged under National Stock Number 4730-01-439-0144, 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 Mechanical Technology, Incorporated Div Mti Instruments Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-439-0144 |
| Primary Part Number | 788D270G1 |
| Item Name | Elbow,flange |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mechanical Technology, Incorporated Div Mti Instruments Inc |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Nominal Length | 4.000 INCHES SECOND END IN |
| Nominal Length | 13.500 INCHES FIRST END IN |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.250 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 8.000 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 3.000 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 9.000 INCHES FIRST END IN |
| Nominal Width | 4.000 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.000 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 12.750 INCHES FIRST END IN |
| Material | STEEL OVERALL |
| Nominal Thickness | 0.375 INCHES ALL ENDS 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 |
|---|---|
| 788D270G1 PRIMARY | Mechanical Technology, Incorporated Div Mti Instruments Inc (USA) |
| Reference | Meaning |
|---|---|
| 788D270 | D/9 Drawing number reference only Mechanical Technology, Incorporated Div Mti Instruments Inc |
NSN 4730-01-439-0144 is a Elbow,flange, manufactured by Mechanical Technology, Incorporated Div Mti Instruments Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-439-0144 has 1 manufacturer part number on file: 788D270G1 (Mechanical Technology, Incorporated Div Mti Instruments Inc).
Key specifications for 788D270G1: Flange Shape: RECTANGULAR WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Nominal Length: 4.000 INCHES SECOND END IN; Nominal Length: 13.500 INCHES FIRST END IN. 16 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.