The Valve,gate, cataloged under National Stock Number 4820-00-899-6733, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-899-6733 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 1.000 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 850.0 FAHRENHEIT STEAM AND 850.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF |
| Operating Pressure and Type | 800.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 800.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | SOCKET, WELD, PIPE |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM A743 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Valve Size | 1.000 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL COMP 416 STEM |
| Material | STEEL UNS K03504 BODY |
| Material | STEEL COMP 410 DISK |
| Material | STEEL COMP 410 SEAT |
| 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 |
|---|---|
| F57DE | 5/9 Secondary reference U.S. Government activity |
| F-57D 1 IN | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-00-899-6733 is a Valve,gate, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-150-3581. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-00-899-6733: Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 1.000 INCHES IN; Maximum Operating Temp and Media for Which Designed: 850.0 FAHRENHEIT STEAM AND 850.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF; Operating Pressure and Type: 800.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 800.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 19 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.