The Flange,pipe, cataloged under National Stock Number 4730-00-893-3735, 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 Cooper Machinery Services Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-893-3735 |
| Primary Part Number | H14438-1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cooper Machinery Services Llc |
| Status | ACTIVE |
| Flange End Radius | 0.500 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Face Seating Surface Condition | UNFINISHED |
| Tube Outside Diameter for Which Designed | 0.750 INCHES NOMINAL IN |
| Flange Section Style | PLAIN FACE, RAISED NECK |
| Style Designator | OVAL, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.438 INCHES NOMINAL IN |
| Neck Height | 0.250 INCHES NOMINAL IN |
| Flange Length | 3.688 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN |
| Bolt Hole Quantity | 2 |
| Bolt Circle Diameter | 2.500 INCHES NOMINAL IN |
| Surface Treatment | PAINT OR OXIDE |
| Flange Width | 1.875 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 0.594 INCHES NOMINAL 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 |
|---|---|
| H14438-1 PRIMARY | Cooper Machinery Services Llc (USA) |
| Reference | Meaning |
|---|---|
| H14438-1 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
NSN 4730-00-893-3735 is a Flange,pipe, manufactured by Cooper Machinery Services Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-893-3735 has 1 manufacturer part number on file: H14438-1 (Cooper Machinery Services Llc).
Key specifications for H14438-1: Flange End Radius: 0.500 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN; Face Seating Surface Condition: UNFINISHED; Tube Outside Diameter for Which Designed: 0.750 INCHES NOMINAL IN; Flange Section Style: PLAIN FACE, RAISED NECK. 14 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.