The Tailpiece,union, cataloged under National Stock Number 4730-01-442-9970, 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 Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-442-9970 |
| Primary Part Number | 190000 PIECE 11 .50IPSC1 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| End Connection Type | BRAZED |
| Criticality Code Justification | ZZZY |
| Material | STEEL COMP 316 |
| Reference Number Differentiating Characteristics | QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE, CLEANED IAW MIL-C-52211 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 190000 PIECE 11 .50IPSC1 | Naval Inventory Control Point Mechanicsburg (USA) |
| C-58579-08C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 190000 PIECE 11 .50IPS | 3/1 Design control — primary reference Eaton Corporation Dba Eaton Inoac Div Eaton |
| C-58579-08 | 5/1 Secondary reference Eaton Corporation Dba Eaton Inoac Div Eaton |
NSN 4730-01-442-9970 is a Tailpiece,union, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-442-9970 has 2 manufacturer part numbers on file: 190000 PIECE 11 .50IPSC1 (Naval Inventory Control Point Mechanicsburg), C-58579-08C1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 190000 PIECE 11 .50IPSC1: End Connection Type: BRAZED; Criticality Code Justification: ZZZY; Material: STEEL COMP 316; Reference Number Differentiating Characteristics: QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE, CLEANED IAW MIL-C-52211. 4 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.