The Elbow,tube, cataloged under National Stock Number 4730-01-553-6311, 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 Connector Specialists Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Elbow,tube |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Connector Specialists Inc (CAGE 009L1); Cadillac Gage Textron Inc. (CAGE 10237) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-553-6311 |
| Primary Part Number | 4503-20-16 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Connector Specialists Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 219239 | Connector Specialists Inc (USA) |
| 219239 | Cadillac Gage Textron Inc. (USA) |
| 4503-20-16 PRIMARY | Connector Specialists Inc (USA) |
NSN 4730-01-553-6311 is a Elbow,tube, manufactured by Connector Specialists Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-553-6311 has 3 manufacturer part numbers on file: 219239 (Connector Specialists Inc), 219239 (Cadillac Gage Textron Inc.), 4503-20-16 (Connector Specialists Inc).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-607-7600. Verify interchangeability with system specifications before substitution.
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.