MIL-DTL-2427H (AR)
Conformance inspection by classification of characteristics
PARAGRAPH
TITLE
DRAWING NUMBER
4.3.2.1
Assembly
drawing indicated by
SHEET 2 OF 7
contract
NEXT HIGHER ASSEMBLY
EXAMINATION OR TEST
Grade
CONFORMANCE
REQUIREMENT
INSPECTION METHOD
CLASSIFICATION
A
B
C
CRITERIA
PARAGRAPH
REFERENCE
Major
110
x
x
Acceptable holes, loose knots or knots
surrounded by checking not
sufficiently separated
Level IV
3.3.3
SME
111
x
x
Plugged hole too large
Level IV
3.3.3.1
SME
112
x
x
x
Improper use of board or piece
Level IV
3.6.1/3.6.2
SME
113
x
x
x
Knot holes less than 12 inches apart
Level IV
3.3.3
SME
114
x
x
Solid knot in nailing edge or under
hardware split by nail screw or milling
operation (See Note 1)
Level IV
3.3.3
Visual
115
x
x
x
Nail protruding inside box
Level IV
3.8.1
Visual
116
x
x
x
Grain of wood in wrong direction
Level IV
3.8.1
Visual
117
x
x
Nails not in pattern shown on drawing
or as required by the specification
Level IV
3.7.3
Visual
118
x
x
Split terminating in edge of board
Level IV
3.3.2
Visual
Note 1. Knots in nailing edges or underneath hardware require particular attention. When nails are driven through them, knots may crack or breakout, appreciably
weakening the construction. This sometimes can be corrected by extra wood if nails can be placed in a proper location in solid wood. When such a successful repair is
presented, the box should be considered acceptable. If the attempted repair results in further cracking, however, the box shall be classed defective. Knots in the place of
attachment of hardware often crack sufficiently to loosen the hardware when screws are tightened. Milling operations necessary for the insetting of hardware also often
cause such knots to crack, making proper attachment of the hardware impossible. These two conditions cannot be repaired and the box shall be classed defective.
- 21 -
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business