The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-442-3341, 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 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-442-3341 |
| Primary Part Number | 26-1623-18-008 |
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tescom Corp Dba Tescom Div Tescom |
| Status | ACTIVE |
| Flow Control Device | DISK |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Thread Class | 2B |
| First End Style Designator | GASKET SEAL |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 303 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 2 |
| Valve Loading Method | WEIGHT |
| First End Connection Type | THREADED INTERNAL BOSS |
| Material | STEEL COMP 303 BODY |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 3/4-14 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 |
|---|---|
| 26-1623-18-008 PRIMARY | Tescom Corp Dba Tescom Div Tescom (USA) |
| Reference | Meaning |
|---|---|
| 2619-002-03 | D/9 Drawing number reference only U.S. Government activity |
| 4677373 | D/9 Drawing number reference only U.S. Government activity |
| 4677373-0010 | 5/2 Secondary reference U.S. Government activity |
| 26-1623-18-008 | C/1 Advisory reference — outside the item-of-supply concept Tescom Corp Instrument Div |
| 2619-002-03 ITEM 10 | 5/2 Secondary reference U.S. Government activity |
| 4677373 ITEM 10 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-442-3341 is a Valve,regulating,system Pressure, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-442-3341 has 1 manufacturer part number on file: 26-1623-18-008 (Tescom Corp Dba Tescom Div Tescom).
Key specifications for 26-1623-18-008: Flow Control Device: DISK; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 16 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.