The Float,valve, cataloged under National Stock Number 4510-01-319-3605, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Armstrong International Inc Dba Armstrong Machine Works. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4510-01-319-3605 |
| Primary Part Number | D501802 |
| Item Name | Float,valve |
| FSC / FSG | 4510 / 45 — Plumbing Fixtures and Accessories |
| Manufacturer | Armstrong International Inc Dba Armstrong Machine Works |
| Status | ACTIVE |
| Overall Diameter | 6.375 INCHES NOMINAL IN |
| Connection Type | THREADED |
| Quantity | 2 |
| Shape | CYLINDRICAL |
| Thread Location | INTERNAL |
| System for Which Designed | OPEN |
| Material | IRON CAST |
| Thread Size and Series/type Designator | 1-11-1/2 NPT |
| 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 |
|---|---|
| D501802 PRIMARY | Armstrong International Inc Dba Armstrong Machine Works (USA) |
| Reference | Meaning |
|---|---|
| 3-LD-1IN-.50 ORF | 5/9 Secondary reference Armstrong International Inc Dba Armstrong Machine Works |
NSN 4510-01-319-3605 is a Float,valve, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
NSN 4510-01-319-3605 has 1 manufacturer part number on file: D501802 (Armstrong International Inc Dba Armstrong Machine Works).
Key specifications for D501802: Overall Diameter: 6.375 INCHES NOMINAL IN; Connection Type: THREADED; Quantity: 2; Shape: CYLINDRICAL. 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.