The Valve,ball, cataloged under National Stock Number 4820-00-181-9439, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-181-9439 |
| Primary Part Number | AV24B1202B |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Criticality Code Justification | ZZZY |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Valve Size | 1.375 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Bolt Hole Quantity | 4 FIRST END |
| Face to Face Distance | 1.380 INCHES IN |
| Valve Operation Method | ELECTRIC MOTOR |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| AV24B1202B | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
| Reference | Meaning |
|---|---|
| 209-062-664-1 | 1/3 Source control — Government-approved source U.S. Government activity |
NSN 4820-00-181-9439 is a Valve,ball, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-181-9439 has 1 manufacturer part number on file: AV24B1202B (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for AV24B1202B: Flange Face Design: RECESSED STRAIGHT FIRST END; Criticality Code Justification: ZZZY; Connection Type: FLANGE FIRST END; Style Designator: STRAIGHT THRU FLANGED ENDS. 10 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.
NSN 4820-00-181-9439 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.