The Valve,ball, cataloged under National Stock Number 4820-01-388-1233, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Evac North America Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-388-1233 |
| Primary Part Number | 2503139-002 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED WITH CURVE AND RADIUS ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.500 INCHES IN |
| Nominal Outside Diameter | 5.000 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 7.000 INCHES IN |
| Material | IRON BODY |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAT |
| 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 |
|---|---|
| 2503139-002 PRIMARY | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 2503139 | D/9 Drawing number reference only Envirovac Inc Dba Monogram Systems-Rockford Div |
| 2503139-002 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| SP-D-16-F152-B0 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-388-1233 is a Valve,ball, manufactured by Evac North America Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-388-1233 has 1 manufacturer part number on file: 2503139-002 (Evac North America Inc).
Key specifications for 2503139-002: Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED WITH CURVE AND RADIUS ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS. 13 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.