The Cross,tube, cataloged under National Stock Number 4730-00-256-2293, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-256-2293 |
| Item Name | Cross,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Leg Length | 1.422 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Specification/standard Data | 88044-AN827 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AN827-10D | 5/9 Secondary reference Collins Engineering Corp |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AN827-10D | 2/2 Government specification standardization U.S. Government activity |
| AS4841 | 5/1 Secondary reference Sae International Dba Sae International |
| AN827-10D | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AN827-10D | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AN827-10D | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN827-10D | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AN827-10D | 5/1 Secondary reference Aerofit, Llc |
| AN827-10D | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| AN827-10D | 5/9 Secondary reference Crown Fitting Co Inc |
NSN 4730-00-256-2293 is a Cross,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-256-2293: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.