Mil Spec Wire | SAE AS 27500 NEMA | WC 27500

Conductor: Various Platings and Strandings
Insulation: Various Insulation Types
Shield: Various Materials (Shielded and Unshielded)
Jacket: Various Materials (Shielded and Unshielded)

Download pdf of this page

Applications

The ANSI/NEMA WC 27500 REV B specification is commonly used to describe both shielded and unshielded cable constructions for avionics, aerospace and airframe applications. The specification allows the user a wide variety of construction choices. Circuit identification, conductor size, insulation type, number of conductors, shielding material and jacket compound may all be specified using this document.

QPL is required for WC27500 in addition to the basic component wires. The producer of the finished cable must be a qualified source under the applicable basic wire specification, or must provide evidence that Qualified wire was used in the construction of the cable.

Since Marmon Aerospace and Defense ® has a large variety of military QPL approvals, it is able to provide one of the widest ranges of WC 27500 constructions of any source in the wire and cable industry. Although this brief sheet cannot list all the detailed testing and specification requirements contained in the complete WC 27500 document, we have summarized the major construction features of the specification and listed those that Marmon produces.

Cable Specifications

Table 1: Basic Wire Specifications

Symbol	Basic Wire Specifications	Insulation Type	Temp Rating	Voltage
A	SAE AS50861/1	PVC/Nylon	150°C	600V
B	SAE AS50861/2	PVC/Nylon/Braids	150°C
SB	SAE AS22759/32	XLETFE	150°C
SC	SAE AS22759/33	XLETFE	200°C
SD	SAE AS22759/34	XLETFE	150°C
SE	SAE AS22759/35	XLETFE	200°C
SM	SAE AS22759/41	XLETFE	200°C
SN	SAE AS22759/42	XLETFE	200°C
SP	SAE AS22759/43	XLETFE	200°C
SR	SAE AS22759/44	XLETFE	200°C
SS	SAE AS22759/45	XLETFE	200°C
ST	SAE AS22759/46	XLETFE	200°C
TE	SAE AS22759/16	ETFE	150°C
TG	SAE AS22759/18	ETFE	150°C
MH	SAE AS81044/9	XL POLY/KYNAR	150°C
MJ	SAE AS81044/10	XL POLY/KYNAR	150°C
MK	SAE AS81044/11	XL POLY/KYNAR	150°C
ML	SAE AS81044/12	XL POLY/KYNAR	150°C
MM	SAE AS81044/13	XL POLY/KYNAR	150°C

The specification also allows a wide variety of jacket materials in both single and double wall constructions. The double jacket constructions are to be used in conjunction with the double shields listed above. A double jacket is applied using 2 shields with the inner jacket isolating the shields, plus an outer jacket.

Table 2: Jacket Types

Single Jacket	Double Jacket	Jacket Material	Temp Rating
00	00	No Jacket	-
01	51	Extruded White PVC	90°C
02	52	Extruded Clear Nylon	105°C
05	55	Extruded Clear FEP	200°C
08	58	Extruded White Irradiated PVDF	150°C
09	59	Extruded White FEP	200°C
10	60	Extruded Clear PVDF	125°C
14	64	Extruded White ETFE	150°C
15	65	Extruded Clear ETFE	150°C
20	70	Extruded White PFA	260°C
21	71	Extruded Clear PFA	260°C
23	73	Extruded White Irradiated ETFE	200°C

Table 3: Shield Descriptions

Single Shield	Double Shield	Shield Material	Temp Rating
U	-	Not Shielded	-
T	V	Tin Plated Copper, Round	150°C
S	W	Silver Plated Copper, Round	200°C
N	Y	Nickel Plated Copper, Round	260°C
F	Z	Stainless Steel, Round	400°C
C	R	Nickel Clad Copper, Round	400°C
M	K	Silver Plated High Strength, Copper Alloy, Round	200°C
P	L	Nickel Plated High Strength, Copper Alloy, Round	260°C

Symbol	Basic Wire Specifications	Shield Material	Jacket Material	Temperature Rating	Voltage Rating
Table 1	Table 1	Table 2	Table 3
A B	SAE AS50861/1 SAE AS50861/2	U T V	00 01 51	105°C 90°C 90°C	600V
MH MJ MK ML MM	SAE AS81044/9 SAE AS81044/10 SAE AS81044/11 SAE AS81044/12 SAE AS81044/13	U T V	00 08 58	150°C	600V
SB SD	SAE AS22759/32 SAE AS22759/34	U T V	00 23 73	150°C	600V
SC SE SP SR	SAE AS22759/33 SAE AS22759/35 SAE AS22759/43 SAE AS22759/44	U S W	00 23 73	200°C	600V
SM SN SS ST	SAE AS22759/41 SAE AS22759/42 SAE AS22759/45 SAE AS22759/46	U N Y	00 23 73	200°C	600V

All products are manufactured to meet RoHS compliance. For exceptions, please contact our sales department at 1-866-303-9473.

M27500 Cables

NEMA WC27500 Shielded and Unshielded Military Wire Cable

Applications

Cable Specifications

Table 1: Basic Wire Specifications

Table 2: Jacket Types

Table 3: Shield Descriptions