The Tailpiece,union, cataloged under National Stock Number 4730-01-337-4476, 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 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-337-4476 |
| Primary Part Number | 211050016L1 |
| 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 | WELDED |
| Criticality Code Justification | ZZZY |
| Seat Type | BALL |
| Material | COPPER ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 211050016L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| DF330613 FIND 79 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 801-6408529 FIND 79L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 211050016 | 3/1 Design control — primary reference Naval Sea Systems Command |
| DF330613 FIND 79L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 801-6408529 FIND 79 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4730-01-337-4476 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 4730-01-337-4476 has 1 manufacturer part number on file: 211050016L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 211050016L1: End Connection Type: WELDED; Criticality Code Justification: ZZZY; Overall Length: 7.440 INCHES NOMINAL IN; Seat Type: BALL. 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.