The Cross,boss, cataloged under National Stock Number 4730-00-405-9738, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-405-9738 |
| Primary Part Number | AS5193-16 |
| Item Name | Cross,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Leg Length | 1.531 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 1.312 INCHES ALL ENDS IN |
| Specification/standard Data | 81343-AS5193 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3B ALL ENDS |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL COMP 1137 OR STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AS5193-16 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS5193-16 | 5/9 Secondary reference U.S. Government activity |
| AN937-16 | 5/9 Secondary reference U.S. Government activity |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| AN937-16 | 5/9 Secondary reference Aerofit, Llc |
| SAE-AS4875 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AN937-16 | 5/9 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AS4875 | 5/9 Secondary reference Sae International Dba Sae International |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN937-16 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AS5193 | 5/9 Secondary reference U.S. Government activity |
| AS5193 | 5/9 Secondary reference Sae International Dba Sae International |
| AN937-16 | 5/9 Secondary reference Precision Form Rivet Inc |
| AN937-16 | 5/9 Secondary reference Hydro-Fitting Manufacturing Corporation |
| AN937-16 | 5/9 Secondary reference Collins Engineering Corp |
| AN937-16 | 5/9 Secondary reference Crown Fitting Co Inc |
| AN937-16 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
NSN 4730-00-405-9738 is a Cross,boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-405-9738 has 1 manufacturer part number on file: AS5193-16 (Sae International Dba Sae International).
6 possible matches (shared part number, not a government interchangeability claim): 4730-00-410-5531, 4730-00-475-4152, 4730-00-538-6741. Verify interchangeability with system specifications before substitution.
Key specifications for AS5193-16: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE; Connection Style: GASKET SEAL (BOSS) ALL ENDS; Criticality Code Justification: FEAT. 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.