The O-Ring, cataloged under National Stock Number 5331-01-406-3218, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Modine Manufacturing Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-406-3218 |
| Primary Part Number | 5A37284B |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Modine Manufacturing Co |
| 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 |
|---|---|
| 5A37284B PRIMARY | Modine Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 5A37284B | 3/9 Design control — primary reference Modine Mfg Co |
NSN 5331-01-406-3218 is a O-Ring, manufactured by Modine Manufacturing Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-406-3218 has 1 manufacturer part number on file: 5A37284B (Modine Manufacturing Co).
Key specifications for 5A37284B: End Item Identification: USED ON DONUT OIL COOLER MODELS 1A15972 AND 1A11525. 0 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.