The O-Ring, cataloged under National Stock Number 5331-01-729-2829, 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 | 5331-01-729-2829 |
| Primary Part Number | ISO 3601-028 50BN |
| 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 | 1.698 MILLIMETERS MINIMUM AND 1.858 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 50.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 34.32 MILLIMETERS MINIMUM AND 34.98 MILLIMETERS MAXIMUM MM |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| ISO 3601-028 50BN PRIMARY | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc (USA) |
| 13115624 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5331-01-729-2829 is a O-Ring, manufactured by Apple Rubber Products, Inc. Dba Apple Rubber Products Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-729-2829 has 2 manufacturer part numbers on file: ISO 3601-028 50BN (Apple Rubber Products, Inc. Dba Apple Rubber Products Inc), 13115624 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for ISO 3601-028 50BN: Cross-Sectional Height: 1.698 MILLIMETERS MINIMUM AND 1.858 MILLIMETERS MAXIMUM MM; Hardness Rating: 50.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 34.32 MILLIMETERS MINIMUM AND 34.98 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.