The Valve,ball, cataloged under National Stock Number 4820-01-058-4998, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-058-4998 |
| Primary Part Number | V3279 ASSYE |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 4.437 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.688 INCHES ALL ENDS IN |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 2.000 INCHES IN |
| Nominal Outside Diameter | 5.562 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 6 ALL ENDS |
| Face to Face Distance | 10.625 INCHES IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | PLASTIC POLYAMIDE NYLON SEAT |
| Material | NICKEL ALLOY BODY |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.812 INCHES ALL ENDS IN |
| 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 |
|---|---|
| V3279 ASSYE PRIMARY | Portland Valve Llc (USA) |
| V3279 ASSYE PRIMARY | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| V3279 | D/9 Drawing number reference only Tyco Fire Products Lp |
| V3279REVLASSYE | 5/9 Secondary reference Tyco Fire Products Lp |
| V3279ASSYE2IN | C/1 Advisory reference — outside the item-of-supply concept Portland Valve Llc |
| V3279ASSYE2IN | C/1 Advisory reference — outside the item-of-supply concept Rockwood Systems Corp |
NSN 4820-01-058-4998 is a Valve,ball, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-058-4998 has 2 manufacturer part numbers on file: V3279 ASSYE (Portland Valve Llc), V3279 ASSYE (Tyco Fire Products Lp).
Key specifications for V3279 ASSYE: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 4.437 INCHES ALL ENDS IN; Connection Type: FLANGE ALL ENDS. 16 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.