The Elbow,pipe to Boss, cataloged under National Stock Number 4730-01-087-9440, 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 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-087-9440 |
| Item Name | Elbow,pipe to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 JAM NUT AND 1 FLAT WASHER AND 2 PREFORMED PACKING |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Connection Style | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END |
| Connection Style | SOCKET BRAZING RING (PIPE) FIRST END |
| Union Joint Location | FIRST END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | QQ-C-390,ALY D5 FED SPEC SINGLE MATERIAL RESPONSE TAILPIECE |
| Material Document and Classification | QQ-S-763,CONDA FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.560 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.440 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 FIRST END |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 14 SECOND END |
| Material | NICKEL ALLOY NUT |
| Material | COPPER ALLOY TAILPIECE |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UNF 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 |
| Reference | Meaning |
|---|---|
| 2621-021-02ASSY47 | 3/2 Design control — primary reference U.S. Government activity |
| 17-97-5388 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-087-9440 is a Elbow,pipe to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-087-9440: Furnished Items and Quantity: 1 JAM NUT AND 1 FLAT WASHER AND 2 PREFORMED PACKING; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 0.250 INCHES FIRST END IN; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END. 22 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.