The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-014-0818, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 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 | 4820-01-014-0818 |
| Primary Part Number | 2881-3 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 2881-3 PRIMARY | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
| 247ASC1825-001 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 4820-01-014-0818 is a Diaphragm,valve,flat, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-014-0818 has 2 manufacturer part numbers on file: 2881-3 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 247ASC1825-001 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 6685-01-168-8194, 5325-01-505-3288. Verify interchangeability with system specifications before substitution.
Key specifications for 2881-3: Material: RUBBER CHLOROPRENE CLASS CR. 1 specification is 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.