The Valve,solenoid, cataloged under National Stock Number 4810-01-188-1787, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-188-1787 |
| Primary Part Number | AV172731004 |
| Item Name | Valve,solenoid |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Flange Face Design | PLAIN ALL ENDS |
| Voltage in Volts and Current Type | 115.0 AC |
| Bolt Circle Nominal Diameter | 2.062 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Valve Size | 0.750 INCHES IN |
| Nominal Outside Diameter | 3.812 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 4.500 INCHES IN |
| Material | COPPER ALLOY 836 BODY |
| Material | STEEL COMP 303 SEAT |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Valve Operation Method | SOLENOID |
| Nominal Thickness | 0.438 INCHES ALL ENDS IN |
| Current Rating in Amps | 0.330 |
| Flow Control Device Normal Operation Position | CLOSED |
| 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 |
|---|---|
| AV172731004 PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| AV172-731 | D/9 Drawing number reference only Automatic Switch Company Dba Asco |
| AV172731-4 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 4810-01-188-1787 is a Valve,solenoid, manufactured by Automatic Switch Company Dba Asco, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-188-1787 has 1 manufacturer part number on file: AV172731004 (Automatic Switch Company Dba Asco).
2 possible matches (shared part number, not a government interchangeability claim): 4810-01-621-4236, 4810-01-633-1170. Verify interchangeability with system specifications before substitution.
Key specifications for AV172731004: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Phase: SINGLE; Frequency in Hertz: 60.0. 22 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.