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NEMA WC 27500 / M27500

 


 

General Description 

 

This standard contains requirements for finished cables. The component wires are covered by other referenced standards. These cables are intended for signal and low-voltage power applications with defined environment or temperature conditions found in commercial aircraft, military aircraft, and high performance vehicles.

  

Part Number Designation

  

M27500

-

22

SD

3

T

23

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|

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Identification number

Identification method of cable wire and shield coverage

Conductor size

Basic wire specification

Number of wires in cable

Shield style and material

Jacket material

 

 

Base Wire Specification for M27500

 

Symbol

Specification

Symbol

Specification

A

MIL-W-5086/1

NK

MIL-W-81381/21

AA

MIL-W-5086/5

NL

MIL-W-81381/22

AB

MIL-W-5086/6

P

MIL-W-5086/4

AD

MIL-W-5086/7

RA

MIL-W-22759/3

B

MIL-W-5086/2

RB

MIL-W-22759/4

C

MIL-W-5086/3

RC

MIL-W-22759/11

CA

MIL-W-22759/13

RE

MIL-W-22759/12

CB

MIL-W-22759/14

SA

MIL-W-22759/7

CC

MIL-W-22759/15

SB

MIL-W-22759/32

E

MIL-W-22759/2

SC

MIL-W-22759/33

EA

MIL-W-22759/1

SD

MIL-W-22759/34

F

MIL-W-8777,MS27110

SE

MIL-W-22759/35

H

MIL-W-8777,MS25471

SM

MIL-W-22759/41

JA

MIL-W-25038/1

SN

MIL-W-22759/42

JB

MIL-W-22759/28

SP

MIL-W-22759/43

JC

MIL-W-22759/29

SR

MIL-W-22759/44

JD

MIL-W-22759/30

SS

MIL-W-22759/45

JE

MIL-W-22759/31

ST

MIL-W-22759/46

JF

MIL-W-25038/3

TA

MIL-W-22759/8

LE

MIL-W-22759/9

TE

MIL-W-22759/16

LH

MIL-W-22759/10

TF

MIL-W-22759/17

MD

MIL-W-81044/5

TG

MIL-W-22759/18

ME

MIL-W-81044/6

TH

MIL-W-22759/19

MF

MIL-W-81044/7

TK

MIL-W-22759/20

MG

MIL-W-81044/8

TL

MIL-W-22759/21

MH

MIL-W-81044/9

TM

MIL-W-22759/22

MJ

MIL-W-81044/10

TN

MIL-W-22759/23

MK

MIL-W-81044/11

VA

MIL-W-22759/5

ML

MIL-W-81044/12

WA

MIL-W-22759/6

MM

MIL-W-81044/13

WB

MIL-W-22759/80

MR

MIL-W-81381/7

WC

MIL-W-22759/81

MS

MIL-W-81381/8

WE

MIL-W-22759/82

MT

MIL-W-81381/9

WF

MIL-W-22759/83

MV

MIL-W-81381/10

WG

MIL-W-22759/84

MW

MIL-W-81381/11

WH

MIL-W-22759/85

MY

MIL-W-81381/12

WJ

MIL-W-22759/86

NA

MIL-W-81381/13

WK

MIL-W-22759/87

NB

MIL-W-81381/14

WL

MIL-W-22759/88

NE

MIL-W-81381/17

WM

MIL-W-22759/89

NF

MIL-W-81381/18

WN

MIL-W-22759/90

NG

MIL-W-81381/19

WP

MIL-W-22759/91

NH

MIL-W-81381/20

WR

MIL-W-22759/92

 

 

Shield Material for M27500

 

Single Shield Symbol

Double Shield Symbol

Shield Material

Maximum Shield Temperature

U

---

No Shield

---

T

V

Tin-coated copper, round

150°c   (302°f) 

S

W

Silver-coated copper, round

200°c   (392°f) 

N

Y

Nickel-coated copper, round

260°c   (500°f) 

F

Z

Stainless Steel, round

400°c   (752°f) 

C

R

Nickel-clad copper, round

400°c   (752°f) 

M

K

Silver-coated high strength copper alloy, round

200°c   (392°f) 

P

L

Nickel-coated high strength copper alloy, round

260°c   (500°f) 

G

A

Silver-coated copper, flat

200°c   (392°f) 

H

B

Silver-coated high strength copper alloy, flat

200°c   (392°f) 

*

#

Nickel-coated copper, flat

260°c   (500°f) 

J

D

Tin-coated Copper, flat

150°c   (302°f) 

E

X

Nickel-coated high strength copper alloy, flat

260°c   (500°f) 

I

Q

Nickel-chromium alloy, flat

400°c   (752°f) 

 

 

Jacket Material and Color for M27500

 

Single Jacket Symbol

Double Jacket Symbol

Jacket Material

Maximum temperature rating

00

00

No Jacket

---

01

51

Extruded white polyvinyl chloride (PVC)

90°c   (194°f) 

02

52

Extruded clear polyamide

105°c   (221°f) 

03

53

White polyamide braid impregnated with clear polyamide finisher over polyester tape

105°c   (221°f) 

04

54

Polyester braid impregnated with high temperature finishers over polyester tape

150°c   (302°f) 

05

55

Extruded clear fluorinated ethylene propylene (FEP)

200°c   (392°f) 

06

56

Extruded or taped and heat sealed white polytetraflouroethylene (PTFE)

260°c   (500°f) 

07

57

White polytetraflouroethylene (PTFE) treated glass braid impregnated and coated with polytetraflouroethylene finisher over presintered polytetraflouroethylene tape

260°c   (500°f) 

08

58

Cross linked white extruded polyvinylidene fluoride (PFV)

150°c   (302°f) 

09

59

Extruded white fluorinated ethylene propylene (FEP)

200°c   (392°f) 

10

60

Extruded clear polyvinylidene fluoride (PFV)

125°c   (257°f) 

11

61

Tape of natural polymide combined with clear fluorinated ethylene propylene (FEP) wrapped and heat sealed with (FEP) outer surface

200°c   (392°f) 

12

62

Tape of natural polyimide combined with fluorinated ethylene propylene (FEP) wrapped and heat sealed with polyimide outer surface

200°c   (392°f) 

14

64

Extruded white ethylene-tetraflouroethylene copolymer (ETFE)

150°c   (302°f) 

15

65

Extruded clear ethylene-tetraflouroethylene copolymer (ETFE)

150°c   (302°f) 

16

66

Braid of aromatic polyamide with high temperature finisher over presinterd polytetraflouroethylene (PTFE) tape

200°c   (392°f) 

17

67

White extruded ethylene chlorotriflouro-ethylene (ECTFE)

150°c   (302°f) 

18

68

Clear extruded ethylene chlorotriflouro-ethylene (ECTFE)

150°c   (302°f) 

20

70

Extruded White perflouroalkoxy (PFA)

260°c   (500°f) 

21

71

Extruded Clear perflouroalkoxy (PFA)

260°c   (500°f) 

22

72

Tape of polyimide combined with clear fluorinated ethylene propylene (FEP) wrapped and heat sealed with opaque polyimide outer surface

200°c   (392°f) 

23

73

White, crosslinked, extruded, modified, ethylene-tetraflouroethylene copolymer (XLETFE)

200°c   (392°f) 

24

74

Tape layer of white polytetraflouroethylene (PTFE) wrapped over a tape layer of natural polyimide combined with FEP heated and fused

260°c   (500°f) 

 

 

Referenced Standards for M27500

 

Standard

Description

ANSI/ASQC Z 1.4

Sampling Procedured and Tables for Inspection by Attributes

ASTM A 313/A313M-98

Standard Specification for Stainless Steel Spring Wire

ASTM B 3-95

Soft or Annealed Copper Wire

ASTM B 33-94

Standard Specification for Tinned Soft or Annealed Copper Wire for Electrical Purposes

ASTM B 272-96

Copper Flat Copper Products with Finished (Rolled or Drawn) Edges (Flat Wire and Strip)

ASTM B 298-99

Silver Coated Soft or Annealed Copper Wire

ASTM B 335-95

Nickel-Coated Soft or Annealed Copper Wire

ASTM B 624-99

High Strength, High-conductivity Copper Alloy Wire for Electronic Application, Standard, Specification for

ASTM D 3032-98

Hookup Wire Insulation, Standard Methods of Testing

ASTM D 4066-99

Polyamide Injection and Extrusion Materials (PA) Nylon Injection and Extrusion Materials (PA)

ASTM F 777-98e1

Standard Test Method for Resistance of Electrical Wire Insulation Materials to Flame at 60 Degrees

NEMA WC 65-1995

A Reasoned Approach to Solving Solderability Problems with Tin-Coated and Nickel-Coated Stranded Conductors in High Performance Wire and Cable Applications

NEMA WC 67-1997

Standard for Uninsulated Conductors Used in Electrical and Electronic Applications

NEMA WC 71-1999

Continuity of Coating Testing for Electrical Conductors

QQ-W-423

Wire, Steel, Corrosion-Resisting

H4-1

Federal Supply Code For Manufactures, United States and Canada, Name to Code

H4-2

Federal Supply Code For Manufactures, United States and Canada. Code to Name

MIL-W-5086

Wire, Polyvinyl Chloride Insulated, Copper or Copper Alloy

MIL-W-8777

Wire, Electrical, Silicone-Insulated, Copper, 600 Volt, 200°c 

MIL-C-12000

Cable, Cord, and Wire, Electric; Packaging of

MIL-W-22759

Wire, Electric, Flouropolymer-insulated, Copper Or Copper Alloy.

MIL-W-25038

Wire, Electrical, High Temperature and Fire Resistant, General Specification for

MIL-W-81044

Wire, Electric, Crosslinked Polyalkene, Crosslinked Alkaneimide Polymer, or Polyarylene Insulated Copper or Copper Alloy

MIL-DTL-81381

Wire, Electric, Polyimide-insulated, Copper or Copper Alloy

MIL-STD-104

Limits for Electrical Insulated Color

MIL-STD-202

Test Methods Standard for Electronic and Electrical Component Parts

MIL-STD-681

Identification Coding and Application of Hookup and lead Wire

MIL-STD-686

Cable and Cord, Electrical; Identification Marking and Color Coding of

MIL-STD-2223

Test Methods for Insulated Electric Wire

MS25471

Wire, Electrical-Silicone, Copper, 600 Volt, 200 Deg. C, Polyester Jacket

MS27110

Wire, Electrical-Silicone, Copper, 600 Volt, 200 Deg. C, FEP Jacket (ASG)

NBS HDBK 100

International Annealed Copper Standard (IACS)

SAE AS50881A

Wiring, Aerospace Vehicle