The Valve,gate, cataloged under National Stock Number 4820-01-273-9090, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-273-9090 |
| Primary Part Number | I30F1 3IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Flange Face Design | RAISED |
| Maximum Operating Temp and Media for Which Designed | 850.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Operating Pressure and Type | 300.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | FLANGE, ROUND W/HOLES |
| Material Document and Classification | ASTM A182 GR. F6 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | ASTM A182 GR. F6 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM A182 GR. F6 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A216 GR. WCB ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 3.000 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bolt Hole Quantity | 8 |
| Flange Diameter | 8.250 INCHES IN |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 11.125 INCHES IN |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL UNS J03002 BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING DISK |
| 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 |
|---|---|
| I30F1 3IN PRIMARY | William E Williams Valve Corp (USA) |
| I 8917 3IN | William E Williams Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| I 8197 | D/9 Drawing number reference only William E Williams Valve Corp |
NSN 4820-01-273-9090 is a Valve,gate, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-273-9090 has 2 manufacturer part numbers on file: I30F1 3IN (William E Williams Valve Corp), I 8917 3IN (William E Williams Valve Corp).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-284-2245. Verify interchangeability with system specifications before substitution.
Key specifications for I30F1 3IN: Inlet Relationship with Outlet: IDENTICAL; Flange Face Design: RAISED; Maximum Operating Temp and Media for Which Designed: 850.0 FAHRENHEIT WATER-OIL-GAS DEGF; Operating Pressure and Type: 300.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 21 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.