The Valve,gate, cataloged under National Stock Number 4820-01-418-8957, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-418-8957 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Flange Face Design | RAISED |
| Stem Type | RISING |
| Connection Type | FLANGE, ROUND W/HOLES |
| Material Document and Classification | ASTM A351 CF8M ASSN STD ALL MATERIAL RESPONSES BODY |
| Material Document and Classification | ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM A351 CF8M ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Valve Size | 8.000 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bolt Hole Quantity | 8 |
| Flange Diameter | 13.500 INCHES IN |
| Bonnet Attachment Method | BOLTED |
| Flange Width | 1.125 INCHES IN |
| Face to Face Distance | 11.500 INCHES IN |
| Pressure Class | ERR-060 |
| Material | STEEL UNS J92900 SEAT |
| Material | STEEL UNS J92900 DISK |
| Material | STEEL UNS J92900 BODY |
| Material | STEEL UNS J92900 STEM |
| 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 |
| Reference | Meaning |
|---|---|
| 8272-2014-80C,P | C/1 Advisory reference — outside the item-of-supply concept Newdell Company, the Dba Ladish Valves |
| 8272-2014-80C | 3/9 Design control — primary reference U.S. Government activity |
| 8272-2014-80C | 5/9 Secondary reference Newdell Company, the Dba Ladish Valves |
NSN 4820-01-418-8957 is a Valve,gate, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-418-9548. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-418-8957: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Flange Face Design: RAISED; Stem Type: RISING. 23 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.