The Valve,check, cataloged under National Stock Number 4820-01-694-8260, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nibco Inc Chemtrol Div. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-694-8260 |
| Primary Part Number | 039923636409 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nibco Inc Chemtrol Div |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 2.500 INCHES ALL ENDS IN |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | B62 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Valve Size | 2.500 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 2.500 INCHES ALL ENDS IN |
| Maximum Operating Temp | 353.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Bonnet Attachment Method | THREADED |
| Face to Face Distance | 8.000 INCHES IN |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Thread Quantity Per Inch | 8 ALL ENDS |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 039923636409 PRIMARY | Nibco Inc Chemtrol Div (USA) |
| NL7K00E PRIMARY | Nibco Inc Chemtrol Div (USA) |
| T-433-Y-2.5-IN PRIMARY | Nibco Inc Chemtrol Div (USA) |
NSN 4820-01-694-8260 is a Valve,check, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-694-8260 has 3 manufacturer part numbers on file: 039923636409 (Nibco Inc Chemtrol Div), NL7K00E (Nibco Inc Chemtrol Div), T-433-Y-2.5-IN (Nibco Inc Chemtrol Div).
Key specifications for 039923636409: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 2.500 INCHES ALL ENDS IN; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL. 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.