The Plate,orifice,fluid, cataloged under National Stock Number 4730-01-541-5686, 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 Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-541-5686 |
| Primary Part Number | 801-6640811 PC 141 |
| Item Name | Plate,orifice,fluid |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Overall Thickness | 1.630 INCHES IN |
| Outside Diameter | 11.967 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Shape | ROUND |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 801-6640811 PC 141 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2633-561-01 PC 141 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-541-5686 is a Plate,orifice,fluid, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-541-5686 has 1 manufacturer part number on file: 801-6640811 PC 141 (Naval Sea Systems Command).
Key specifications for 801-6640811 PC 141: Nominal Overall Thickness: 1.630 INCHES IN; Outside Diameter: 11.967 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Shape: ROUND. 6 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.