The Valve Assembly,manifold, cataloged under National Stock Number 4820-01-439-3487, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-439-3487 |
| Primary Part Number | 509-4325672 ASSY 96 |
| Item Name | Valve Assembly,manifold |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Valve Quantity | 6 |
| Furnished Items and Quantity | 6 HANDWHEEL |
| Flange Face Design | PLAIN |
| Operating Pressure and Type | 100.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LBS |
| Connection Type | FLANGE, ROUND W/O HOLES |
| End Connection Quantity | 8 |
| Body Material | COPPER ALLOY |
| Flange Diameter | 7.500 INCHES IN |
| 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 |
|---|---|
| 509-4325672 ASSY 96 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 509-4325672 ASSY 96 | 3/2 Design control — primary reference U.S. Government activity |
| 4325672 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-439-3487 is a Valve Assembly,manifold, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-439-3487 has 1 manufacturer part number on file: 509-4325672 ASSY 96 (Huntington Ingalls Inc Div Newport News Shipbuilding).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-532-4698, 4820-01-535-2388, 4820-01-538-0250. Verify interchangeability with system specifications before substitution.
Key specifications for 509-4325672 ASSY 96: Valve Quantity: 6; Furnished Items and Quantity: 6 HANDWHEEL; Flange Face Design: PLAIN; Operating Pressure and Type: 100.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LBS. 9 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.