Model: 12929081

Machine Gun Barrel

Special Features:

Phosphate is not sand blasted or applied to internal surfacesl supplemental oil treatment is applied after painting; paint is heat resistant per mil-std-193, color no. 15200 of fed-std-595, applied to specific external surfaces only; chromium plating is applied only to internal surfaces; no mechanical method for removal of chromium platepermitted; plating will produce a continuaaly diminishing dia. Towards the muzzle, except that from the origin of rifling to within 102 mm. Of the muzzlend; a variation of 0.025 from a continually diminishing dia. Is permissible and 0.013 variation is permissible over the remaining lg. Provided that resultant surfaces remain within densional limits for bore and groove dia.; heat treatment is to heat barrel and piston at 1550-1575 deg. F., oil quench, temper 1 hr. Min. To rockwell hardness rc 28-36; gas ports-holes are located within barrel rifling grooves

Properties:

Inside Surface Treatment
Chromium, qq-c-320, class 2a
Overall Length
1143.0 millimeters
End Application
RECO-IL-AMP-LIFI
Size Designation
.50 caliber
Material
Steel, aisi 4150 and steel, aisi 4140
Material
Steel comp 4150 and steel comp 4140
Material Specification
Aisi 4150 assn standard 1st material response and aisi 4140 assn standard 2nd material response
Surface Treatment
Phosphate manganese and paint
Surface Treatment
Phosphate, mil-p-16232, type m, class 1 and painted
Type/model Designation
M3
NSN
1005-01-328-5882
Part Number
12929081
Description
Barrel,machine Gun
CAGE
19200

Part 12929081 NSN 1005-01-328-5882

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
34770
FIIG:
T102-G
Concept No.:
1
App. Key:
GA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
45.0 X 2.5 X 2.5
Paclk Weight:
0.1000lbs
Item Weight:
5.8000lbs
Item Dim:
045000190019
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
091720
UFC:
48170
LTL:
100.0
LCL:
100.0
WCC:
682
TCC:
Z
SHC:
5
ACC:
Arms/Weapons

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Schedule B and Export
  • Schedule B: 9305911000
  • SITC: 89199
  • End Use: Tanks, artillery, missiles, rockets, guns and ammunition
  • NAICS: 332994
  • USDA: 1

Freight Class: Parts and accessories for military rifles of heading 9301

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