The Disk,valve, cataloged under National Stock Number 4810-01-556-4686, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-556-4686 |
| Primary Part Number | LHD0301-3 3.00IN |
| Item Name | Disk,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Material Document and Classification | ASTM A351 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| LHD0301-3 3.00IN PRIMARY | William E Williams Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| LHD0301 | D/9 Drawing number reference only William E Williams Valve Corp |
NSN 4810-01-556-4686 is a Disk,valve, manufactured by William E Williams Valve Corp, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-556-4686 has 1 manufacturer part number on file: LHD0301-3 3.00IN (William E Williams Valve Corp).
3 possible matches (shared part number, not a government interchangeability claim): 4810-01-556-6836, 5330-01-556-6845, 4810-01-556-6850. Verify interchangeability with system specifications before substitution.
Key specifications for LHD0301-3 3.00IN: Material Document and Classification: ASTM A351 ASSN STD SINGLE MATERIAL RESPONSE; Special Features: 316SS CF8M MATERIAL WITH HARD FACE; End Item Identification: NEW CONSTRUCTION LHD8; 4810-01-556-4426 CAST STAINLESS GATE VALVE 3.0IN WITH ACTUATOR IN; Material: STEEL COMP 316. 2 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.