The O-Ring, cataloged under National Stock Number 5331-01-133-1116, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-133-1116 |
| Primary Part Number | STD3019E53 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 2.974 INCHES MINIMUM AND 3.004 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 |
|---|---|
| STD3019E53 | Boeing Distribution Services X, Inc. (USA) |
| STD3019E53 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| STD3019E53 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-133-1116 is a O-Ring, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-133-1116 has 2 manufacturer part numbers on file: STD3019E53 (Boeing Distribution Services X, Inc.), STD3019E53 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for STD3019E53: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 2.974 INCHES MINIMUM AND 3.004 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.