The Plate,orifice,fluid, cataloged under National Stock Number 4730-01-494-5973, 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 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-494-5973 |
| Primary Part Number | 801-6640811 PC 241 |
| 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 | 0.1245 INCHES IN |
| Outside Diameter | 8.240 INCHES MINIMUM AND 8.250 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281, CLA A OR B FED SPEC SINGLE MATERIAL RESPONSE |
| Shape | ROUND |
| 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 |
|---|---|
| 801-6640811 PC 241 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6640811 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2633-561-01 PC 241 | 5/2 Secondary reference U.S. Government activity |
| 2633-561-01 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-494-5973 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 4730-01-494-5973 has 1 manufacturer part number on file: 801-6640811 PC 241 (Naval Sea Systems Command).
Key specifications for 801-6640811 PC 241: Nominal Overall Thickness: 0.1245 INCHES IN; Outside Diameter: 8.240 INCHES MINIMUM AND 8.250 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-281, CLA A OR B FED SPEC SINGLE MATERIAL RESPONSE; Shape: ROUND. 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.