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steel, cmpsn 3310, 4118, 8620, or 9310, QQ-S-624; heat at 1575-1600 deg. f. in carburizing medium for case depth of 0.006-0.010 in., oil quench, temper 30min. at 350-375 deg. f. to hardness specified; manganese phosphate, type m, orzinc phosphate, type z, per MIL-P-16232, class 1; 4.770 in. lg.; 1.343 in. w.; 0.115 in. thk.
An irregulary shaped device, designed to assist a breechlock in locking or unlocking the barrel extension to or from the bolt of a weapon, during the firing and recoil operation.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
Represents items with no adp components
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.