The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-421-0056, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-421-0056 |
| Primary Part Number | 54-2325T108SG004 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tescom Corp Dba Tescom Div Tescom |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Thread Class | 2B |
| First End Style Designator | GASKET SEAL |
| Temp Rating | 105.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Manual Control Method | SCREW |
| First End Connection Type | THREADED INTERNAL BOSS |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Thread Size and Series/type Designator | 3/4-16 UNF FIRST END |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 54-2325T108SG004 | Tescom Corp Dba Tescom Div Tescom (USA) |
| 551-6685231 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 54-2325T108S-004 | 3/9 Design control — primary reference Tescom Corp Pressure Controls Div |
| 54-2325T108SG004 | 5/9 Secondary reference Tescom Corp Pressure Controls Div |
NSN 4820-01-421-0056 is a Valve,regulating,fluid Pressure, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-421-0056 has 2 manufacturer part numbers on file: 54-2325T108SG004 (Tescom Corp Dba Tescom Div Tescom), 551-6685231 (Naval Sea Systems Command).
Key specifications for 54-2325T108SG004: Flow Control Device: POPPET; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 15 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.