The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-131-0997, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-131-0997 |
| Primary Part Number | 249406 PC 2 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Connection Style | PLAIN (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Overall Length | 2.900 INCHES IN |
| Nominal Thread Size | 1.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 14 SECOND END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNS SECOND END |
| Thread Series Designator | NPT FIRST END |
| 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 |
|---|---|
| 249406 PC 2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| SK168816ITEM760 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 132244 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 132244 PC 3 AND 4 | 5/1 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 49406 | D/9 Drawing number reference only Lightwedge, Llc Dba Great Point Light |
| 249406PC91 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-00-131-0997 is a Adapter,straight,pipe to Tube, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-131-0997 has 2 manufacturer part numbers on file: 249406 PC 2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SK168816ITEM760 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
3 possible matches (shared part number, not a government interchangeability claim): 5365-00-473-1113, 5950-01-338-1794, 3040-01-541-2121. Verify interchangeability with system specifications before substitution.
Key specifications for 249406 PC 2: Connection Style: PLAIN (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Nominal Overall Length: 2.900 INCHES IN; Nominal Thread Size: 1.125 INCHES SECOND END IN. 10 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.