MIL-DTL-3124E(SH)
TABLE I. Material requirements Continued.
Item
Item
Limitation
Material
Remarks
no.
17
Spiders
Steel
Fabricated, cast forged,
laminated
18
Laminated sheet top sticks
All sizes
Plastic
MIL-I-24768, Type GSG,
GMG, or GME.
ASTM D5948
19
Terminal boxes and terminal All sizes
Steel
ASTM A47/A47M,
Grade 35018
box covers
Malleable iron
20
Varnish, insulating
All sizes
Solventless varnishes
MIL-I-24092. Solvent
Varnish Class F or greater
insulation.
Steel 2/
21
Wedges
All types
MIL-I-24768, Type GSG
or GMG
Brass
Plastic
Aluminum 2/
22
Wire, electric
All size and types
Copper and
ANSI/NEMA MW 1000.
insulation
No half-size wire allowed.
NOTES:
1/
Unless otherwise specified herein, steel parts shall be cast, fabricated, wrought, or forged. Cast steel shall
be in accordance with Class B of MIL-C-24707/1, or equivalent, except that radiographic and magnetic
particle inspection shall not be required.
2/
For cylindrical rotor material requirements, see 3.3.27.
3.2.2 Electrical insulation. Insulation systems shall be Class F, or greater, as specified (see 6.2).
3.2.3 Non-structural parts. Non-structural parts, such as covers, terminal boxes, housings, ducts, and similar
parts, may be of aluminum or aluminum alloy. Any threaded sections in aluminum or aluminum alloy shall be
reinforced with steel bushings, such as helical inserts.
3.2.4 Recycled, recovered, environmentally preferable materials, or biobased materials. Recycled, recovered,
environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous
life cycle costs.
3.3 Construction. The construction requirements specified herein (see 6.2) shall be in accordance with
MIL-E-917.
3.3.1 Accessibility. Accessibility shall be provided for parts which require routine examination, maintenance,
or replacement in service without the need for disconnection or removal of another part or assembly other than an
access panel or cover. Each access panel and cover shall open and close or be reusable and replaceable (as
applicable), starting from the secured position and returning to the secured position, in not more than 0.5 hour. Time
required for examination, maintenance, or replacement of the part shall not be included.
3.3.2 Phases. Generators rated 1,000 kilowatts or larger shall be three-phase machines. Generators rated less
than 1,000 kilowatts shall be either single- or three-phase, as specified (see 6.2).
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business