The O-Ring, cataloged under National Stock Number 5331-01-080-5756, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions (uk) Ltd. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-080-5756 |
| Primary Part Number | 100-538-8811 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions (uk) Ltd |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.860 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 |
|---|---|
| 5605-6215-003 | Bae Systems (operations) Limited (GBR) |
| 100-538-8811 PRIMARY | Trelleborg Sealing Solutions (uk) Ltd (GBR) |
NSN 5331-01-080-5756 is a O-Ring, manufactured by Trelleborg Sealing Solutions (uk) Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-080-5756 has 2 manufacturer part numbers on file: 5605-6215-003 (Bae Systems (operations) Limited), 100-538-8811 (Trelleborg Sealing Solutions (uk) Ltd).
Key specifications for 100-538-8811: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 3.860 INCHES NOMINAL IN. 2 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.