The Union,tube, cataloged under National Stock Number 4730-01-256-9046, 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 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-256-9046 |
| Item Name | Union,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 PREFORMED PACKING |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 1.828 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Style Designator | FLARED W/ CENTER WRENCHING FACILITY |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Specification/standard Data | 88044-AN815 GOVERNMENT STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL COMP 347 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 |
|---|---|
| AN815-10S | 2/2 Government specification standardization U.S. Government activity |
| SAE-AS4841 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-256-9046 is a Union,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-256-9046: Furnished Items and Quantity: 2 PREFORMED PACKING; Surface Treatment Document and Classification: QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 1.828 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.