The Disk,valve, cataloged under National Stock Number 4820-00-142-2770, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-142-2770 |
| Primary Part Number | 333PC28 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc |
| Status | ACTIVE |
| Pressure Rating | 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 100.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 0.781 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Media for Which Designed | AIR OR WATER |
| Material | RUBBER |
| 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 |
|---|---|
| 333PC28 PRIMARY | Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA) |
| 154CSIZE1-2 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| YW111S4825-263106PC28 | 5/9 Secondary reference U.S. Government activity |
| AN84S4825-461355PC28 | 5/9 Secondary reference Naval Sea Systems Command |
| AN84S4825-461355PC28 | 5/9 Secondary reference U.S. Government activity |
| YW111S4825-263106PC28 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4820-00-142-2770 is a Disk,valve, manufactured by Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-142-2770 has 2 manufacturer part numbers on file: 333PC28 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc), 154CSIZE1-2 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 333PC28: Overall Height: 0.219 INCHES NOMINAL IN; Pressure Rating: 400.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 0.781 INCHES NOMINAL IN. 7 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.