The Adapter,straight,flange to Flang, cataloged under National Stock Number 4730-01-564-0989, 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 Sea Systems Command. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-564-0989 |
| Primary Part Number | 7386494 |
| Item Name | Adapter,straight,flange to Flang |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Nominal Pipe Size Accommodated | 2.500 INCHES ALL ENDS IN |
| Nominal Length | 4.500 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 5.000 INCHES FIRST END IN |
| Nominal Overall Length | 3.500 INCHES IN |
| Criticality Code Justification | FEAT |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.281 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.281 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 3.536 INCHES SECOND END IN |
| Nominal Outside Diameter | 5.450 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Bolt Hole Quantity | 8 FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Nominal Width | 4.500 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.536 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Thickness | 0.250 INCHES FIRST END IN |
| Nominal Thickness | 0.250 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 7386494 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4730-01-564-0989 is a Adapter,straight,flange to Flang, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-564-0989 has 1 manufacturer part number on file: 7386494 (Naval Sea Systems Command).
Key specifications for 7386494: Flange Shape: ROUND WITH HOLES SECOND END; Flange Shape: RECTANGULAR WITH HOLES FIRST END; Nominal Pipe Size Accommodated: 2.500 INCHES ALL ENDS IN; Nominal Length: 4.500 INCHES SECOND END IN. 21 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.
NSN 4730-01-564-0989 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.