The O-Ring, cataloged under National Stock Number 5331-01-037-8944, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Magnetic Seal Llc. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-037-8944 |
| Primary Part Number | 137-519 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Magnetic Seal Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Center Hole Diameter | 2.050 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 137-519 PRIMARY | Magnetic Seal Llc (USA) |
| Reference | Meaning |
|---|---|
| 137-8474 | 5/9 Secondary reference Magnetic Seal Llc |
NSN 5331-01-037-8944 is a O-Ring, manufactured by Magnetic Seal Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-037-8944 has 1 manufacturer part number on file: 137-519 (Magnetic Seal Llc).
Key specifications for 137-519: Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Center Hole Diameter: 2.050 INCHES NOMINAL IN; Material: RUBBER. 3 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.