The Valve,gate, cataloged under National Stock Number 4820-01-247-9957, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-247-9957 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Face Design | PLAIN |
| Connection Type | FLANGE, ROUND W/HOLES |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE DISK |
| Nominal Outside Diameter Tube Accommodated | 9.875 INCHES IN |
| Valve Size | 18.000 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bolt Hole Quantity | 4 |
| Bonnet Attachment Method | BOLTED |
| Face to Face Distance | 17.000 INCHES IN |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 STEM |
| Material | NICKEL ALLOY DISK |
| Material | COPPER ALLOY 922 BODY |
| Reference Number Differentiating Characteristics | LESS MANUAL GEAR OPERATOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| ASI-B1025E-6-18 | 3/1 Design control — primary reference Pima Valve, Llc |
NSN 4820-01-247-9957 is a Valve,gate, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-247-9957: Flange Face Design: PLAIN; Connection Type: FLANGE, ROUND W/HOLES; Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM. 15 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.