The Coupling Body,tube, cataloged under National Stock Number 4730-01-733-4648, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-733-4648 |
| Primary Part Number | AS1655A40 |
| Item Name | Coupling Body,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2472, CLASS 2 NATIONAL STD SINGLE TREATMENT RESPONSE |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Style Designator | FLEXIBLE COUPLING BODY |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 3.080 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| AS1655A40 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS1655 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-733-4648 is a Coupling Body,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-733-4648 has 1 manufacturer part number on file: AS1655A40 (Sae International Dba Sae International).
Key specifications for AS1655A40: Surface Treatment Document and Classification: AMS 2472, CLASS 2 NATIONAL STD SINGLE TREATMENT RESPONSE; Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN; Style Designator: FLEXIBLE COUPLING BODY; Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.