The O-Ring, cataloged under National Stock Number 5331-01-495-5161, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kalmar Solutions Ab. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-495-5161 |
| Primary Part Number | 21522118-408 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kalmar Solutions Ab |
| Status | ACTIVE |
| Cross-Sectional Height | 3.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 90.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE NOMINAL |
| Center Hole Diameter | 29.2 MILLIMETERS NOMINAL MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 21522118-408 PRIMARY | Kalmar Solutions Ab (SWE) |
| 29.2X3SMS1586 | Kalmar Solutions Ab (SWE) |
| Reference | Meaning |
|---|---|
| 29.2X3SMS1586 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 178 1885-801 | D/9 Drawing number reference only Cargotec Sweden Ab - Macgregor Cranes |
| 29.2X3SMS1586 | 5/9 Secondary reference Cargotec Sweden Ab - Macgregor Cranes |
| 21522118-408 | 3/9 Design control — primary reference Cargotec Sweden Ab - Macgregor Cranes |
NSN 5331-01-495-5161 is a O-Ring, manufactured by Kalmar Solutions Ab, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-495-5161 has 2 manufacturer part numbers on file: 21522118-408 (Kalmar Solutions Ab), 29.2X3SMS1586 (Kalmar Solutions Ab).
Key specifications for 21522118-408: Cross-Sectional Height: 3.0 MILLIMETERS NOMINAL MM; Hardness Rating: 90.0 INTERNATIONAL RUBBER HARDNESS DEGREE SCALE NOMINAL; Special Features: MANUEL TG811-BA-MMC-020/1CC45,PG 7-52,FIG 7-15;1998-4-30; Center Hole Diameter: 29.2 MILLIMETERS NOMINAL MM. 4 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.