The O-Ring, cataloged under National Stock Number 5331-01-729-2838, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Apple Rubber Products, Inc. Dba Apple Rubber Products Inc. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-729-2838 |
| Primary Part Number | ISO 3601-037 70EP |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.770 MILLIMETERS MINIMUM AND 1.786 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 62.76 MILLIMETERS MINIMUM AND 63.68 MILLIMETERS MAXIMUM MM |
| Material | RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM |
| 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 |
|---|---|
| 13115352 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| ISO 3601-037 70EP PRIMARY | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc (USA) |
NSN 5331-01-729-2838 is a O-Ring, manufactured by Apple Rubber Products, Inc. Dba Apple Rubber Products Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-729-2838 has 2 manufacturer part numbers on file: 13115352 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), ISO 3601-037 70EP (Apple Rubber Products, Inc. Dba Apple Rubber Products Inc).
Key specifications for ISO 3601-037 70EP: Cross-Sectional Height: 1.770 MILLIMETERS MINIMUM AND 1.786 MILLIMETERS MAXIMUM MM; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 62.76 MILLIMETERS MINIMUM AND 63.68 MILLIMETERS MAXIMUM MM; Part Name Assigned by Controlling Agency: O-RING. 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.