The Adapter,straight,hose to Boss, cataloged under National Stock Number 4730-00-562-5267, 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 Mcgill Aircraft Parts, Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-562-5267 |
| Primary Part Number | 4550618 |
| Item Name | Adapter,straight,hose to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcgill Aircraft Parts, Inc. |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | BEADED (HOSE) FIRST END |
| Nominal Inside Diameter Hose Accommodated | 1.562 INCHES FIRST END IN |
| Nominal Overall Length | 3.063 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | UNTHREADED EXTERNAL HOSE FIRST END |
| Material Document and Classification | QQ-A-225/9 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 1.875 INCHES SECOND END IN |
| Surface Treatment | PAINT OR PAINT HEAT RESISTANT OVERALL |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID FIRST RESPONSE |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | ALUMINUM ALLOY 7075 OR ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UN SECOND 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 |
|---|---|
| 4550618 | Mcgill Aircraft Parts, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4550618 | 3/2 Design control — primary reference U.S. Government activity |
| 4550618 | 5/9 Secondary reference The Boeing Company |
NSN 4730-00-562-5267 is a Adapter,straight,hose to Boss, manufactured by Mcgill Aircraft Parts, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-562-5267 has 1 manufacturer part number on file: 4550618 (Mcgill Aircraft Parts, Inc.).
Key specifications for 4550618: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: BEADED (HOSE) FIRST END; Nominal Inside Diameter Hose Accommodated: 1.562 INCHES FIRST END IN; Nominal Overall Length: 3.063 INCHES IN. 15 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.