The Plate,seal,plunger, cataloged under National Stock Number 4820-00-494-1860, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-494-1860 |
| Primary Part Number | 74995322-7 |
| Item Name | Plate,seal,plunger |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,0.062 IN. THK,2.031 IN. LG O/A,0.594 IN. DIA CENTER HOLE,1.625 IN. BETWEEN BOLT HOLE CENTERS IN |
| 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 |
|---|---|
| 74995322-7 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 5012 | 5/2 Secondary reference U.S. Government activity |
| 205121 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| 205121 | C/1 Advisory reference — outside the item-of-supply concept Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
NSN 4820-00-494-1860 is a Plate,seal,plunger, manufactured by Kalmar AC Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-494-1860 has 1 manufacturer part number on file: 74995322-7 (Kalmar AC Inc).
4 possible matches (shared part number, not a government interchangeability claim): 3040-00-979-6658, 1650-01-224-0782, 2815-01-262-5072. Verify interchangeability with system specifications before substitution.
Key specifications for 74995322-7: General Characteristics Item Description: STEEL,0.062 IN. THK,2.031 IN. LG O/A,0.594 IN. DIA CENTER HOLE,1.625 IN. BETWEEN BOLT HOLE CENTERS IN. 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.