The O-Ring, cataloged under National Stock Number 5331-01-429-2399, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kalmar Solutions Ab. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Kalmar Solutions Ab (CAGE A184N) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-429-2399 |
| Primary Part Number | 21522115-415 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kalmar Solutions Ab |
| Status | ACTIVE |
| 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 |
|---|---|
| 21522115-415 PRIMARY | Kalmar Solutions Ab (SWE) |
| 4893789-801 ITEM 001 PRIMARY | Kalmar Solutions Ab (SWE) |
| Reference | Meaning |
|---|---|
| 21522115-415 | 3/9 Design control — primary reference Cargotec Sweden Ab - Macgregor Cranes |
| 21522115-415 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 4893789-801 ITE | 5/9 Secondary reference Macgregor Sweden Ab |
| 4893789-801 ITEM 001 | 5/9 Secondary reference Cargotec Sweden Ab - Macgregor Cranes |
NSN 5331-01-429-2399 is a O-Ring, manufactured by Kalmar Solutions Ab, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-429-2399 has 2 manufacturer part numbers on file: 21522115-415 (Kalmar Solutions Ab), 4893789-801 ITEM 001 (Kalmar Solutions Ab).
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.