The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-386-3312, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Vapor Power International, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-386-3312 |
| Primary Part Number | 45011618 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Vapor Power International, Llc |
| Status | ACTIVE |
| Style Designator | FLAT |
| Material Document and Classification | LOCKHEED-CALIFORNIA CO, C-22-1221 MFR REF SINGLE MATERIAL RESPONSE |
| Media for Which Designed | WATER |
| Material | PLASTIC POLYAMIDE NYLON |
| 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 |
|---|---|
| 45011618 PRIMARY | Vapor Power International, Llc (USA) |
| Reference | Meaning |
|---|---|
| 45011618 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-386-3312 is a Diaphragm,valve,flat, manufactured by Vapor Power International, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-386-3312 has 1 manufacturer part number on file: 45011618 (Vapor Power International, Llc).
Key specifications for 45011618: Style Designator: FLAT; Material Document and Classification: LOCKHEED-CALIFORNIA CO, C-22-1221 MFR REF SINGLE MATERIAL RESPONSE; Special Features: FOR 1.000 IN. REGULATING VALVE IN; Media for Which Designed: WATER. 4 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.