The O-Ring, cataloged under National Stock Number 5331-01-577-0524, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Polaris Industries Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-577-0524 |
| Primary Part Number | 5411521 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Polaris Industries Inc |
| 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 |
NSN 5331-01-577-0524 is a O-Ring, manufactured by Polaris Industries Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-577-0524 has 2 manufacturer part numbers on file: 5411521 (Polaris Industries Australia & New Zealand), 5411521 (Polaris Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 2930-01-631-5216. Verify interchangeability with system specifications before substitution.
Key specifications for 5411521: Part Name Assigned by Controlling Agency: O-RING; End Item Identification: 49ATV CYLINDER 07700MV. 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.