The Coupling Assembly,tube, cataloged under National Stock Number 4730-01-526-4603, 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 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-526-4603 |
| Primary Part Number | AS1652A16 |
| Item Name | Coupling Assembly,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES ALL ENDS IN |
| Material | ALUMINUM SLEEVE |
| Material | ALUMINUM BODY |
| 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 |
|---|---|
| AS1652A16 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS1652A16 | 3/9 Design control — primary reference U.S. Government activity |
| 4730PL2143383 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| SAE-AS1652 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 4730-01-526-4603 is a Coupling Assembly,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-526-4603 has 1 manufacturer part number on file: AS1652A16 (Sae International Dba Sae International).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-527-2398, 4730-01-545-0756, 4730-01-581-0063. Verify interchangeability with system specifications before substitution.
Key specifications for AS1652A16: Connection Style: PLAIN (TUBE) ALL ENDS; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES ALL ENDS IN; Special Features: CONSIST OF SLEEVE AS1654 AND COUPLING BODY AS1655. 5 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.