A & A Locksmith services in New York Locksmith Glossary - N

A & A Locksmith services in New York

Locksmith Glossary - N

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z National Service Provider (n.) A nationwide maintenance contracting company who supplies the sub-contracted services of a local technician to a customer. NCK (sym.) Symbol for "no change key," primarily used in hardware schedules. Neck (of a Key) (n.) 1. The portion of a bit key between the shoulder and the bit(s). (n.) 2. The portion of a cylinder key between the shoulder and the bow. Negative Locking (n.) Locking achieved solely by spring pressure or gravity which prevents a key cut too deeply from operating a lock or cylinder. Nest (n.) A unitized group of safe deposit boxes. Neuter Bow (n.) The bow of a key which is unidentifiable to a particular lock manufacturer. NFPA 101 (n.) National Fire Protection Association life safety code. NFPA 80 (n.) National Fire Protection Association standards for doors and windows. NFS (abb.) Non-Fail Safe Nib Ward (n.) A ward formed from a lock case by bending part of the case into the path of the key. Nickel Silver (n.) A brass alloy containing nickel used in making some key blanks and tumblers. Night Latch (n.) A rim mounted auxiliary latch bolt. NKR (abb.) Non Key Retaining NLSA (abb.) National Locksmith Suppliers Association NMK (abb.) A notation used to indicate "not master keyed" and is suffixed in parentheses to a regular keying symbol. It indicates that the cylinder is not to be operated by the master key(s) specified in the regular keying symbol; e.g., AB6(NMK). Nominal Keyset (n.) A keyset listed with an "X" prefix in a cross keyed cylinder designation. Non Key Retaining (adj.) Of or pertaining to a lock whose key can be removed in both the locked and unlocked positions. Non-Control Chamber (n.) A chamber in an IC which does not have a separate shear line for the control function. Non-Fail Safe (adj.) A feature of a security device designed to remain engaged, for security purposes, during a power loss. Non-Handed (adj.) Pertaining to hardware that is manufactured in a way, which allows installation on doors of any orientation without requiring modification or adjustment to accommodate the door orientation. Non-Keyed (adj.) Having no provision for key operation Note: This term also includes privacy function locksets operated by an emergency key. Non-Original Key Blank (n.) Any key blank other than an original. Non-Removable Key (adj.) A key which has one or more cuts on it which trap the key in the lock upon insertion. Non-Removable Pin (n.) Pertaining to a hinge whose pin can not be removed when the door is closed. Non-Reversible (adj.) Of or pertaining to a lock or cylinder which is or is to be combinated only to a master key. Non-Sized Closer (n.) A door closer with infinitely adjustable closing force between specific sizes. Nose (n.) The part of a non-cylinder lock which contains the keyway and rotates within a horn. Nose Puller (n.) A tool used to remove the nose of a lever tumbler lock and allow access to the tumblers. NRK (abb.) Non-Removable Key NRP (abb.) Non-Removable Pin NSO (abb.) National Safemans Organization NSP (abb.) National Service Provider NUR (abb.) Nurse's Key Nurse's Key (n.) A selective master key used in a hospital keying system.