The O-Ring, cataloged under National Stock Number 5331-01-605-5993, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Symmons Industries Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-605-5993 |
| Primary Part Number | HP-10A |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Symmons Industries Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Center Hole Diameter | 2.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| HP-10A PRIMARY | Symmons Industries Inc (USA) |
NSN 5331-01-605-5993 is a O-Ring, manufactured by Symmons Industries Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-605-5993 has 1 manufacturer part number on file: HP-10A (Symmons Industries Inc).
Key specifications for HP-10A: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Outside Diameter: 2.500 INCHES NOMINAL IN; Center Hole Diameter: 2.250 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING. 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.