The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-436-9430, 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 Sae International Dba Sae International. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-436-9430 |
| Primary Part Number | 6-6-520281C |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.687 INCHES FIRST END IN |
| Leg Length | 1.180 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.980 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.687 INCHES FIRST END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Specification/standard Data | 81343-520281 GOVERNMENT SPECIFICATION |
| Thread Class | 2A SECOND END A |
| Thread Class | 2B FIRST END |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Quantity Per Inch | 18 SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | UN FIRST END |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 6AEL60S | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 6-6-520281C PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 6-6-520281C | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-436-9430 is a Elbow,tube to Boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-436-9430 has 2 manufacturer part numbers on file: 6AEL60S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 6-6-520281C (Sae International Dba Sae International).
Key specifications for 6-6-520281C: Flow Angle: 90.0 DEGREES; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Connection Type: THREADED EXTERNAL BOSS SECOND END. 19 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.