The O-Ring, cataloged under National Stock Number 5331-00-020-7527, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Omark Industries Inc Hydraulic Materials Handling Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-020-7527 |
| Primary Part Number | 135920 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Omark Industries Inc Hydraulic Materials Handling Div |
| Status | ACTIVE |
| Cross-Sectional Height | 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.463 INCHES MINIMUM AND 1.487 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 135920 PRIMARY | Omark Industries Inc Hydraulic Materials Handling Div (USA) |
| Reference | Meaning |
|---|---|
| 3-920N183-90 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| N0183 3-920 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-00-020-7527 is a O-Ring, manufactured by Omark Industries Inc Hydraulic Materials Handling Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-020-7527 has 1 manufacturer part number on file: 135920 (Omark Industries Inc Hydraulic Materials Handling Div).
1 possible match (shared part number, not a government interchangeability claim): 2610-01-264-3165. Verify interchangeability with system specifications before substitution.
Key specifications for 135920: Cross-Sectional Height: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN; Center Hole Diameter: 1.463 INCHES MINIMUM AND 1.487 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.