The O-Ring, cataloged under National Stock Number 5331-01-078-7253, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Enerquip, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-078-7253 |
| Primary Part Number | 2-223-166 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Enerquip, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.463 INCHES MINIMUM AND 0.473 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 |
|---|---|
| 2-223-166 PRIMARY | Enerquip, Llc (USA) |
NSN 5331-01-078-7253 is a O-Ring, manufactured by Enerquip, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-078-7253 has 1 manufacturer part number on file: 2-223-166 (Enerquip, Llc).
Key specifications for 2-223-166: Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN; Center Hole Diameter: 0.463 INCHES MINIMUM AND 0.473 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.