The O-Ring, cataloged under National Stock Number 5331-01-446-5042, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-446-5042 |
| Primary Part Number | R4875 |
| 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) |
| Part Number | Manufacturer |
|---|---|
| 21-10923 ITEM 14 | Kalmar Solutions Ab (SWE) |
| R4875 PRIMARY | Kalmar Solutions Ab (SWE) |
| Reference | Meaning |
|---|---|
| 21-10923 ITEM 14 | 5/9 Secondary reference Cargotec Sweden Ab - Macgregor Cranes |
| R4875 | 3/9 Design control — primary reference Cargotec Sweden Ab - Macgregor Cranes |
| R4875 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
NSN 5331-01-446-5042 is a O-Ring, manufactured by Kalmar Solutions Ab, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-446-5042 has 2 manufacturer part numbers on file: 21-10923 ITEM 14 (Kalmar Solutions Ab), R4875 (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.