The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-019-2749, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oerlikon Metco Us Inc. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-019-2749 |
| Primary Part Number | 1001449 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oerlikon Metco Us Inc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC |
| First End Seat Angle in Deg | 30.0 |
| First End Thread Class | 2A A |
| First End Style Designator | INVERTED FLARE |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 0.0 TO 400.0 CAMERA MOUNT |
| Second End Thread Direction | RIGHT-HAND |
| Manual Control Method | TEE HANDLE |
| Valve Loading Method | SPRING |
| Second End Style Designator | SWIVEL NUT, FLARED |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.375 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL STEM |
| Media for Which Designed | ARGON AND HELIUM |
| Maximum Inlet Pressure Rating | ERR-060 |
| Second End Connection Type | THREADED EXTERNAL GAS CYLINDER |
| Furnished Items | CYLINDER GAGE AND DELIVERY GAGE |
| Thread Size and Series/type Designator | 0.563-18 UNF FIRST END |
| Thread Size and Series/type Designator | 0.965-14 NGO SECOND END |
| Filter | 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 |
|---|---|
| 1001449 PRIMARY | Oerlikon Metco Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 7GNR | 5/9 Secondary reference Metco Inc Sub of the Perkin-Elmer Corp |
NSN 4820-01-019-2749 is a Valve,regulating,fluid Pressure, manufactured by Oerlikon Metco Us Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-019-2749 has 1 manufacturer part number on file: 1001449 (Oerlikon Metco Us Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-313-5903, 5330-01-544-9520. Verify interchangeability with system specifications before substitution.
Key specifications for 1001449: Flow Control Device: POPPET; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Body Style: STRAIGHT THRU. 26 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.