The O-Ring, cataloged under National Stock Number 5331-01-732-5523, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Epco Products Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-732-5523 |
| Primary Part Number | 52-02-0025 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Epco Products Co |
| Status | ACTIVE |
| Cross-Sectional Height | 1.60 MILLIMETERS NOMINAL MM |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Peripheral Diameter | 15.3 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 12.10 MILLIMETERS NOMINAL MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 52-02-0025 PRIMARY | Epco Products Co (USA) |
| Reference | Meaning |
|---|---|
| 4602258 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5331-01-732-5523 is a O-Ring, manufactured by Epco Products Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-732-5523 has 1 manufacturer part number on file: 52-02-0025 (Epco Products Co).
Key specifications for 52-02-0025: Cross-Sectional Height: 1.60 MILLIMETERS NOMINAL MM; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Peripheral Diameter: 15.3 MILLIMETERS NOMINAL MM; Center Hole Diameter: 12.10 MILLIMETERS NOMINAL MM. 5 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.