4820-01-184-4040 DISK,VALVE Index 2540-01-184-4042 CYLINDER,LOCK,VEHICULAR

National Stock Number:
1005-01-184-4041

Federal Supply Class:
1005

National Item Identification Number:
011844041

Description:
BOLT,AUTOMATIC WEAPON

Detail:
AN ITEM CONSISTING OF A BOLT CARRIER, A BREECH BOLT, A TOP PLATE, AND A LOCATING PIN. IT REPLACES A BREECH BOLT IN A RIFLE OR MACHINE GUN TO ALTER THE OPERATION OF THE WEAPON FROM GAS TO BLOW-BACK SO THAT LOW-POWERED PRACTICE AMMUNITION MAY BE USED. IT IS NOT INTENDED FOR NON-PRACTICE USAGE. EXCLUDES BOLT, BREECH AND BREECHBLOCK.


Manufacturer Information:
1183349119200US ARMY ARDEC RDECOM
L7M2Z2641OLIN AUSTRALIA LTD WINCHESTER DIVISION
L7M2BLUEZ2641OLIN AUSTRALIA LTD WINCHESTER DIVISION


Techincal Specification:
MATERIALSTEEL
OVERALL LENGTH2.292 INCHES NOMINAL
SURFACE TREATMENTCADMIUM
SPECIAL FEATURESSURFACE TREATMENT PER QQ-P-416,TYPE 1,CLASS 3 FOR TOP PLATE ONLY; MANGANESE PHOSPHATE,TYPE M,OR ZINC PHOSPHATE,TYPE Z,PER MIL-P-16232,CLASS 1,OVERALL EXCEPT FOR TOP PLATE; TOP PLATE=AISI 01,HARDNESS RC26-32; BOLT CARRIER=8620,COLD DRAWN STRESS RELIEVED STEEL,BRINEL HARDNESS 217-229; BOLT= CARPENTERSTEEL 158,BRINEL HARDNESS 195-235; EJECTOR PIN=TITANIUM; LOCATING PIN=AISI 01,HARDNESS RC26-32
WEAPON MODEL NUMBERM16
WEAPON SIZE DESIGNATION5.56 MILLIMETER


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