The Elbow,boss, cataloged under National Stock Number 4730-00-720-1801, 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 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-720-1801 |
| Primary Part Number | AS5190J08 |
| Item Name | Elbow,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 |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Surface Treatment Document and Classification | MIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Leg Length | 1.000 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Specification/standard Data | 88044-AN939 GOVERNMENT STANDARD AND 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3B ALL ENDS |
| Material | STEEL COMP 304 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 |
| Part Number | Manufacturer |
|---|---|
| AS5190J08 PRIMARY | Sae International Dba Sae International (USA) |
| AN939J8 | Satair A/s (DNK) |
| AS5190J08 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| AN939J8 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| AN939J8 | 5/9 Secondary reference Acra Aerospace, Llc |
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| AN939J8 | 5/9 Secondary reference U.S. Government activity |
| AN939J8 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| SAE-AS4875 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS5190J08 | 5/9 Secondary reference U.S. Government activity |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN939J8 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AN939J8 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| AN939J8 | 5/9 Secondary reference Crown Fitting Co Inc |
| AN939C8 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AN939J8 | 5/9 Secondary reference Collins Engineering Corp |
NSN 4730-00-720-1801 is a Elbow,boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-720-1801 has 4 manufacturer part numbers on file: AS5190J08 (Sae International Dba Sae International), AN939J8 (Satair A/s), AS5190J08 (Leonardo Spa Helicopters Division - Production Site), AN939J8 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for AS5190J08: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE; Surface Treatment Document and Classification: MIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Connection Style: GASKET SEAL (BOSS) ALL ENDS. 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.