BM21-4: DOOR,METAL,MARINE STRUCTURAL.
The DOOR,METAL,MARINE STRUCTURAL is a the manufacturer industrial component. Key specifications include dog_type: ROTATING, material: ALUMINUM, design_type: WATERTIGHT, fixed_light: INCLUDED, dog_location: IN DOOR, hasp_location: OUTSIDE. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-186-0964, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| dog_type | ROTATING |
| material | ALUMINUM |
| design_type | WATERTIGHT |
| fixed_light | INCLUDED |
| dog_location | IN DOOR |
| dog_quantity | 4 |
| hasp_location | OUTSIDE |
| hole_diameter | 0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN |
| opening_width | 21.000 INCHES NOMINAL IN |
| opening_length | 48.000 INCHES NOMINAL IN |
| hardness_rating | 50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM |
| panel_thickness | 0.187 INCHES NOMINAL IN |
| NSN | 5310-00-186-0964 |
| INTERNAL PREBENT KEY WIDTH | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| OVERALL DISTANCE INCLUDING KEYS | 1.719 INCHES MAXIMUM IN |
| HARDNESS RATING | 50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM |
| STYLE DESIGNATOR | KEY |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| OUTSIDE DIAMETER | 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN |
| MATERIAL THICKNESS | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN |
| EXTERNAL KEY QUANTITY | 13 |
| INTERNAL PREBENT KEY LENGTH | 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| EXTERNAL PREBENT KEY WIDTH | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |