The O-Ring, cataloged under National Stock Number 5331-01-162-6159, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Triumph Engine Control Systems Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-162-6159 |
| Primary Part Number | 78172-123 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.168 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| 78172-123 PRIMARY | Triumph Engine Control Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 10117176 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-162-6159 is a O-Ring, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-162-6159 has 1 manufacturer part number on file: 78172-123 (Triumph Engine Control Systems Llc).
Key specifications for 78172-123: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 1.168 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN; Material: RUBBER FLUOROSILICONE CLASS FQ. 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.