The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-320-1760, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-320-1760 |
| Primary Part Number | WC-00394-4D9A |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Valve Stem Design | SINGLE SEAT |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Thread Class | 3A A |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | AMS-QQ-A-200/3, T8510 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.500 INCHES NOMINAL IN |
| Material | STEEL SEAT |
| Material | STEEL COMP 630 FLOW CONTROL DEVICE |
| Media for Which Designed | AIR |
| Thread Size and Series/type Designator | 3/4-16 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| 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 |
|---|---|
| WC-00394-4D9A PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| 6310226-32.11 | Naval Sea Systems Command (USA) |
| WC003944D9A | Pall Aeropower Corporation (USA) |
| 6310226-130 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6310226 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6310226-130 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
NSN 4820-01-320-1760 is a Valve,regulating,fluid Pressure, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-320-1760 has 4 manufacturer part numbers on file: WC-00394-4D9A (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div), 6310226-32.11 (Naval Sea Systems Command), WC003944D9A (Pall Aeropower Corporation), 6310226-130 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-320-6803, 4730-01-320-7111. Verify interchangeability with system specifications before substitution.
Key specifications for WC-00394-4D9A: Flow Control Device: POPPET; Valve Stem Design: SINGLE SEAT; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL. 17 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.