The Valve,ball, cataloged under National Stock Number 4820-01-431-6702, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-431-6702 |
| Primary Part Number | PL 1137-00-C IT40/41 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Minimum Operating Temp | -20.0 FAHRENHEIT DEGF |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 2.500 INCHES ALL ENDS IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Bonnet Type | INSIDE SCREW |
| Maximum Operating Temp | 360.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | COPPER ALLOY 694 STEM |
| Material | COPPER ALLOY 844 BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | COPPER ALLOY 844 FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 360 PACKING |
| 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 |
|---|---|
| PL 1137-00-C IT40/41 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| 3800SJ-2.50IN | Grinnell Supply Sales Co Sub of Tyco Laboratories (USA) |
| Reference | Meaning |
|---|---|
| 3800SJ-2.50IN | 3/9 Design control — primary reference Grinnell Corp Sub of Tyco Intl Us Inc |
NSN 4820-01-431-6702 is a Valve,ball, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-431-6702 has 2 manufacturer part numbers on file: PL 1137-00-C IT40/41 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), 3800SJ-2.50IN (Grinnell Supply Sales Co Sub of Tyco Laboratories).
Key specifications for PL 1137-00-C IT40/41: Furnished Items and Quantity: 1 HANDLE; Connection Style: SOCKET (TUBE) ALL ENDS; Minimum Operating Temp: -20.0 FAHRENHEIT DEGF; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS. 19 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.