The Adapter,straight,flange to Groov, cataloged under National Stock Number 4730-01-534-2903, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-534-2903 |
| Primary Part Number | 3654AS5191-1 |
| Item Name | Adapter,straight,flange to Groov |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Recess Nominal Depth | 0.156 INCHES FIRST END IN |
| Flange Shape | ROUND SECOND END |
| Flange Shape | ROUND FIRST END |
| Furnished Items and Quantity | 1 CAP |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Nominal Overall Length | 3.063 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Nominal Outside Diameter | 3.625 INCHES SECOND END IN |
| Nominal Outside Diameter | 4.500 INCHES FIRST END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Raised Face Nominal Diameter | 2.875 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.063 INCHES SECOND END IN |
| Nominal Thickness | 0.100 INCHES FIRST END IN |
| Nominal Thickness | 0.187 INCHES SECOND END IN |
| Recess Nominal Diameter | 3.625 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 |
|---|---|
| 3654AS5191-1 | Atec Inc (USA) |
| 3654AS5191-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 3654AS5191-1 | Astronics Test Systems Inc (USA) |
NSN 4730-01-534-2903 is a Adapter,straight,flange to Groov, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-534-2903 has 3 manufacturer part numbers on file: 3654AS5191-1 (Atec Inc), 3654AS5191-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 3654AS5191-1 (Astronics Test Systems Inc).
Key specifications for 3654AS5191-1: Recess Nominal Depth: 0.156 INCHES FIRST END IN; Flange Shape: ROUND SECOND END; Flange Shape: ROUND FIRST END; Furnished Items and Quantity: 1 CAP. 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.