The Union,tube, cataloged under National Stock Number 4730-01-524-8645, 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 Fatigue Technology, Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-524-8645 |
| Primary Part Number | EFFB24A0-1A |
| Item Name | Union,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Fatigue Technology, Inc |
| Status | ACTIVE |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | ALUMINUM ALLOY OVERALL |
| Nominal Thickness | 0.283 INCHES ALL ENDS BULKHEAD 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 |
|---|---|
| EFFB24A0-1A PRIMARY | Fatigue Technology, Inc (USA) |
| Reference | Meaning |
|---|---|
| 7D0479A24-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-524-8645 is a Union,tube, manufactured by Fatigue Technology, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-524-8645 has 1 manufacturer part number on file: EFFB24A0-1A (Fatigue Technology, Inc).
Key specifications for EFFB24A0-1A: Nominal Outside Diameter Tube Accommodated: 1.500 INCHES ALL ENDS IN; Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Part Name Assigned by Controlling Agency: UNION,TUBE - FUEL CPLY FERRULE ENDS,FORCED EXPANSION SPECIAL; End Item Identification: C-17A AIRCRAFT A. 4 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.