The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-103-8097, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-103-8097 |
| Primary Part Number | 22004-1 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| Outside Diameter | 8.000 INCHES NOMINAL IN |
| Material | PLASTIC |
| 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 |
|---|---|
| 22004-1 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| Reference | Meaning |
|---|---|
| 4820PL0655971 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 22001 | 5/9 Secondary reference Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging |
| 22004-1 | C/1 Advisory reference — outside the item-of-supply concept Hydraulics International, Inc. Dba Use CAGE Code 56529 for Cataloging |
| 22004-1 | 5/9 Secondary reference General Seal Co |
NSN 4820-01-103-8097 is a Diaphragm,valve,flat, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-103-8097 has 1 manufacturer part number on file: 22004-1 (Hydraulics International, Inc. Dba Hydraulics International Inc).
4 possible matches (shared part number, not a government interchangeability claim): 5980-01-310-5443, 6610-01-356-3432, 2915-01-588-7656. Verify interchangeability with system specifications before substitution.
Key specifications for 22004-1: Outside Diameter: 8.000 INCHES NOMINAL IN; Special Features: 0.045 IN. THK STOCK; 0.070 IN. H; 12 HOLES 0.200 IN DIA;7.380 IN BOLT CIRCLE DIA IN; Material: PLASTIC. 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.