The Valve,ball, cataloged under National Stock Number 4820-01-347-4369, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-347-4369 |
| Primary Part Number | 801-6404977 ASSY-98 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 8.250 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | CROSS W/OFFSET FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.6915 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.6915 INCHES THIRD END IN |
| Valve Size | 5.000 INCHES IN |
| Offset Distance | 1.518 INCHES IN |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bolt Hole Quantity | 8 FIRST END |
| Bolt Hole Quantity | 8 THIRD END |
| Face to Face Distance | 19.163 INCHES IN |
| First Connection Face to Centerline Distance | 9.750 INCHES IN |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY STEM |
| Material | PLASTIC ACETAL SEAT |
| Nominal Thickness | 0.880 INCHES SECOND END IN |
| Nominal Thickness | 1.440 INCHES FIRST END IN |
| Nominal Thickness | 1.440 INCHES THIRD END IN |
| 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 |
|---|---|
| 801-6404977 ASSY-98 PRIMARY | Naval Sea Systems Command (USA) |
| 211037301 | Naval Sea Systems Command (USA) |
NSN 4820-01-347-4369 is a Valve,ball, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-347-4369 has 2 manufacturer part numbers on file: 801-6404977 ASSY-98 (Naval Sea Systems Command), 211037301 (Naval Sea Systems Command).
Key specifications for 801-6404977 ASSY-98: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 8.250 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS. 20 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.