The O-Ring, cataloged under National Stock Number 5331-01-371-5126, 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 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-371-5126 |
| Primary Part Number | 223408 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Enerquip, Llc |
| Status | ACTIVE |
| Outside Diameter | 17.750 INCHES NOMINAL IN |
| Supplementary Features | THICKNESS: .25" |
| Center Hole Diameter | 17.0 INCHES NOMINAL 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 |
|---|---|
| 223408 PRIMARY | Enerquip, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1-223408 | 5/9 Secondary reference Enerquip, Llc |
| SA-1247-C ITEM 16 | 5/9 Secondary reference Enerquip, Llc |
NSN 5331-01-371-5126 is a O-Ring, manufactured by Enerquip, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-371-5126 has 1 manufacturer part number on file: 223408 (Enerquip, Llc).
Key specifications for 223408: Outside Diameter: 17.750 INCHES NOMINAL IN; Supplementary Features: THICKNESS: .25"; Special Features: MATERIAL: SYNTHETIC RUBBER PER MIL-G-1149 TYPE I, CLASS II, 65 DUROMETER NON-OIL RES; Center Hole Diameter: 17.0 INCHES NOMINAL IN. 4 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.