The Cap,valve, cataloged under National Stock Number 4820-01-439-8619, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-439-8619 |
| Primary Part Number | 258760 PIECE 74 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Valve Model Number for Which Designed | 258760 ASSY.E |
| Material Document and Classification | MIL-C-15726 MIL SPEC ALL MATERIAL RESPONSES |
| Valve Size for Which Designed | 1.500 INCHES IN |
| Material | COPPER ALLOY |
| Attachment Method | DRILLED HOLE |
| 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 |
|---|---|
| 258760 PIECE 74 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 258760 ITEM 74 | 5/9 Secondary reference C M Industries Inc Dba Custom Marine Sales |
| 258760 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 258760 ITEM 74 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-439-8619 is a Cap,valve, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-439-8619 has 1 manufacturer part number on file: 258760 PIECE 74 (Portland Valve Llc).
Key specifications for 258760 PIECE 74: Valve Type for Which Designed: BALL; Valve Model Number for Which Designed: 258760 ASSY.E; Material Document and Classification: MIL-C-15726 MIL SPEC ALL MATERIAL RESPONSES; Valve Size for Which Designed: 1.500 INCHES IN. 6 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.