The Coupling,tube, cataloged under National Stock Number 4730-00-901-1198, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-901-1198 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | REDUCED SOCKET W/ GROOVE (PIPE) FIRST END |
| Tubing Wall Nominal Thickness for Which Designed | 0.053 INCHES FIRST END IN |
| Nominal Overall Length | 1.032 INCHES IN |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Style Designator | BEVELED BOTH ENDS |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.377 INCHES FIRST END IN |
| Material | COPPER ALLOY OVERALL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 810-1385944PC3L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 810-1385944PC3 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-00-901-1198 is a Coupling,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-00-901-3687. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-901-1198: Connection Style: REDUCED SOCKET W/ GROOVE (PIPE) FIRST END; Tubing Wall Nominal Thickness for Which Designed: 0.053 INCHES FIRST END IN; Nominal Overall Length: 1.032 INCHES IN; Criticality Code Justification: ZZZY. 10 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.