The Valve,seatless, cataloged under National Stock Number 4820-01-016-4183, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deltrol Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-016-4183 |
| Primary Part Number | POV32S |
| Item Name | Valve,seatless |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Deltrol Corp |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Furnished Items and Quantity | 2 NUT |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Stem Type | RISING |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU W/OFFSET |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Offset Distance | 0.875 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Bonnet Attachment Method | THREADED |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |
| Material | STEEL OVERALL |
| Thread Series Designator | NPTF ALL ENDS |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| POV32S PRIMARY | Deltrol Corp (USA) |
| Reference | Meaning |
|---|---|
| POV-32S | C/1 Advisory reference — outside the item-of-supply concept Smiths Interconnect Americas, Inc. |
NSN 4820-01-016-4183 is a Valve,seatless, manufactured by Deltrol Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-016-4183 has 1 manufacturer part number on file: POV32S (Deltrol Corp).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-130-2108. Verify interchangeability with system specifications before substitution.
Key specifications for POV32S: Flow Control Device: STEM; Furnished Items and Quantity: 2 NUT; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Stem Type: RISING. 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.