The O-Ring, cataloged under National Stock Number 5331-01-408-6475, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Haywardindl. Products, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-408-6475 |
| Primary Part Number | ST00599 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| ST00599 PRIMARY | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ST051010CFM005 PIECE 6 | 5/9 Secondary reference Haywardindl. Products, Inc. |
NSN 5331-01-408-6475 is a O-Ring, manufactured by Haywardindl. Products, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-408-6475 has 1 manufacturer part number on file: ST00599 (Haywardindl. Products, Inc.).
Key specifications for ST00599: Special Features: CENTER HOLE DIAMETER AT LEAST 1.250 INCHES OR LARGER IN; Material: RUBBER FLUOROCARBON CLASS FPM. 1 specification is 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.