The Valve,gate, cataloged under National Stock Number 4820-01-681-0197, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Matco-Norca, Inc. Dba Matco Products. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-681-0197 |
| Primary Part Number | 512T03 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Matco-Norca, Inc. Dba Matco Products |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Body Material Document and Classification | B584 C83600 ASSN STD SINGLE MATERIAL RESPONSE |
| Stem Type | RISING |
| Valve Size | 0.500 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Face to Face Distance | 1.890 INCHES IN |
| Stem Material Document and Classification | B21 C48200 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY STEM |
| Material | COPPER ALLOY 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 |
|---|---|
| 512T03 PRIMARY | Matco-Norca, Inc. Dba Matco Products (USA) |
NSN 4820-01-681-0197 is a Valve,gate, manufactured by Matco-Norca, Inc. Dba Matco Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-681-0197 has 1 manufacturer part number on file: 512T03 (Matco-Norca, Inc. Dba Matco Products).
Key specifications for 512T03: Inlet Relationship with Outlet: IDENTICAL; Body Material Document and Classification: B584 C83600 ASSN STD SINGLE MATERIAL RESPONSE; Stem Type: RISING; Valve Size: 0.500 INCHES IN. 11 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.