The Valve,ball, cataloged under National Stock Number 4820-01-615-4274, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nil-Cor, Llc. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-615-4274 |
| Primary Part Number | 845-8219247-AANA |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nil-Cor, Llc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Nominal Length | 6.00 INCHES ALL ENDS IN |
| Minimum Operating Temp | -50.0 FAHRENHEIT DEGF |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Bolt Hole Nominal Diameter | 0.75 INCHES ALL ENDS IN |
| Nominal Outside Diameter Tube Accommodated | 2.0 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.312 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 6.00 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 1.00 INCHES ALL ENDS IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 18 ALL ENDS |
| Material | NICKEL ALLOY STEM |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAT |
| Material | GLASS FIBER AND RESIN BODY |
| Material | GLASS FIBER AND RESIN FLOW CONTROL DEVICE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL ENDS |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 845-8219247-AANA PRIMARY | Nil-Cor, Llc (USA) |
| 845-8219247-AANA | Naval Sea Systems Command (USA) |
| 845-219247-AANA SHEET 1 | Naval Sea Systems Command (USA) |
NSN 4820-01-615-4274 is a Valve,ball, manufactured by Nil-Cor, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-615-4274 has 3 manufacturer part numbers on file: 845-8219247-AANA (Nil-Cor, Llc), 845-8219247-AANA (Naval Sea Systems Command), 845-219247-AANA SHEET 1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-632-2959. Verify interchangeability with system specifications before substitution.
Key specifications for 845-8219247-AANA: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Connection Style: PLAIN (TUBE) ALL ENDS; Nominal Length: 6.00 INCHES ALL ENDS IN. 21 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.