The Connector,multiple,fluid Pressur, cataloged under National Stock Number 4730-00-412-1863, 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 Leonardo Spa Helicopters Division - Production Site. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-412-1863 |
| Primary Part Number | NAS1237A6 |
| Item Name | Connector,multiple,fluid Pressur |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Bolt Hole Fluid Passage | PROVIDED |
| Seat Angle in Deg | 12.0 LOCATION NOT OTHERWISE SPECIFIED |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Fluid Conveyance Type and Size for Which Designed | 0.375 IN. OD TUBE SIZE IN |
| Connection Style | FLARELESS LOCATION NOT OTHERWISE SPECIFIED |
| Bolt Hole Flats Serrations | NOT PROVIDED |
| Style Designator | 1 FLUID CONNECTION |
| Fluid Connection Quantity | 1 LOCATION NOT OTHERWISE SPECIFIED |
| Bolt Hole Diameter | 0.563 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size | 9/16 IN.-18 LOCATION NOT OTHERWISE SPECIFIED IN |
| Screw Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | ANODIZE |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Material | ALUMINUM ALLOY |
| Furnished Items | SEAT LOCATION NOT OTHERWISE SPECIFIED |
| Thickness | 0.969 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 |
|---|---|
| NAS1237A6 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| AS18280 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS18280 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS18280 | 5/9 Secondary reference Sae International Dba Sae International |
| NAS1237A6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-412-1863 is a Connector,multiple,fluid Pressur, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-412-1863 has 1 manufacturer part number on file: NAS1237A6 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for NAS1237A6: Bolt Hole Fluid Passage: PROVIDED; Seat Angle in Deg: 12.0 LOCATION NOT OTHERWISE SPECIFIED; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Fluid Conveyance Type and Size for Which Designed: 0.375 IN. OD TUBE SIZE IN. 17 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.