The Float,valve, cataloged under National Stock Number 4820-01-134-1390, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kovatch Corp.. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-134-1390 |
| Primary Part Number | 6102 1 |
| Item Name | Float,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kovatch Corp. |
| Status | ACTIVE |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Connection Type | THREADED |
| Quantity | 1 |
| Shape | ROUND |
| Thread Location | INTERNAL |
| System for Which Designed | OPEN |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 0.312-18 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 6102 1 PRIMARY | Kovatch Corp. (USA) |
| Reference | Meaning |
|---|---|
| 6102-1 | 5/9 Secondary reference Philadelphia Valve Co |
NSN 4820-01-134-1390 is a Float,valve, manufactured by Kovatch Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-134-1390 has 1 manufacturer part number on file: 6102 1 (Kovatch Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 3431-01-284-3113, 1377-01-286-3723. Verify interchangeability with system specifications before substitution.
Key specifications for 6102 1: Overall Height: 5.460 INCHES NOMINAL IN; Overall Diameter: 4.000 INCHES NOMINAL IN; Connection Type: THREADED; Quantity: 1. 8 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.