Connectors – AK Industries

HeavyBOS

dlacuran — Mon, 06 Jul 2026 19:38:27 +0000

Our HeavyBOS connectors are designed for maximum ruggedness. These are heavy connectors with thick cross sections. They are best for fixed locations where weight is not an issue, but ruggedness is necessary.

The BOS acronym started out as an internal light hearted name that meant bulkhead-on-steroids, due to their massively heavy and strong shells. Eventually customers started calling them BOS as well, so we stuck with that name.

Features & Benefits

Molded Bending Strain Relief

Integrally molded relief that spreads stress over distance, preventing concentrated flexing at the cable/connector joint.

Color Coded Leads

Bulkhead and overmold leads match their mated cable colors, making conductor tracing easier than numbered tags.

Bulkhead Pressure Block

Machined into the metal shell to resist water intrusion during a catastrophic failure.

Reinforced Bulkhead Neck

A heavier, stronger neck resists the head shearing off during aggressive disconnection — a common failure point on other connectors.

Crimped Contacts

Crimped rather than soldered contacts resist bending-fatigue failures better under repeated flexing and cable pull.

Gold Plated Contacts

Plated to ASTM B488-01 Type II for reduced electrical resistance and resistance to atmospheric and saltwater corrosion.

Pin Shoulder Radius

A radiused contact pin and insulation shoulder make mating easier in darkness or rough seas, and reduce fraying at the interface.

HeavyBOS Product Range

HeavyBOS is available in three sizes — 18mm, 22mm, and 32mm — with Female Socket (FS) or Male Pin (MP) contact configurations.

Bulkheads

Bulkhead receptacles mount to your pressure vessel and handle 10,000 psi pressure differential (open face). Available in aluminum, brass, or stainless steel — other materials available by special request.

Inlines

Inline plugs are available as pigtails or molded directly onto your cable. Standard pigtail length is 1 meter; any length can be specified. Plugs into a bulkhead receptacle or another inline connector.

Dummies

Dummy connectors blank off an unused bulkhead receptacle or inline connector, protecting the gold-plated contacts from saltwater exposure.

Locking Sleeves

Not required for operation, but prevent disengagement under cable pulling loads. Available in Delrin, aluminum, or stainless steel.

Part Numbering & Specifications

Use the key below to decode a HydroVolt part number, e.g. BHa-8B-MP-Sp.

Part Numbering Key

Technical

Contact #	Color
1	Black
2	White
3	Red
4	Green
5	Orange
6	Blue
7	White & Black
8	Red & Black
9	Green & Black
10	Orange & Black
11	Blue & Black
12	Black & White
13	Red & White
14	Green & White
15	Blue & White
16	Black & Red

# Cond	V Rating	OD	Type
2	600	0.36	SOOW
3	600	0.37	SOOW
4	600	0.4	SOOW
5	600	0.5	SOOW
6	600	0.53	SOOW
8	600	0.6	SOOW
10	600	0.64	SOOW
12	600	0.66	SOOW
16	600	0.76	SOOW

Item	Material	Specification	Notes
Body	Neoprene	Virgin Electrical Grade	Proprietary Formulation
Bulkhead	Various	CA-360	Brass, Alum, SS
Electrical Pin	Brass	CA-360	Gold Plated
Orientation Pin	Brass	CA-360	Gold Plated
Cable	Neoprene	SOOW_A	Heavy Duty
Conductors	Teflon	Type E	Color Coded

Component	Spec
Contacts (All)	600 V
Contacts (2-4)	15 Amps
Contacts (6-8)	10 Amps
Ins. Res.	>500 Meg
Test Voltage	500V

Dimension Sheets

LiteBOS

dlacuran — Sun, 05 Jul 2026 00:33:58 +0000

Our LiteBOS connectors are designed to be rugged, but with the constraint of being as light as practicable. These are excellent where weight is an issue, such as ROVs and AUVs. They’re also a bit smaller than their big brothers, HeavyBOS, due to less massive cross sections.

LiteBOS connectors were derived from our HeavyBOS connectors, which customers loved but couldn’t deal with the weight of. They asked us for something tough, but much lighter — and they liked some of the features of HeavyBOS, such as snug-fitting locking sleeves that help inline cables deal with off-axis bending.

LiteBOS Product Range

LiteBOS is available in 10.6mm size, with Female Socket (FS) or Male Pin (MP) contact configurations.

Bulkheads

Bulkhead receptacles mount to your pressure vessel, offering HeavyBOS-derived ruggedness in a lighter, smaller package.

Inlines

Inline plugs are available as pigtails or molded directly onto your cable, plugging into a bulkhead receptacle or another inline connector.

Locking Sleeves

Snug-fitting locking sleeves, carried over from HeavyBOS, help inline cables deal with off-axis bending and resist disengagement under cable pulling loads.

Dimensions

Downloads

Low Profile

dlacuran — Sat, 04 Jul 2026 19:51:47 +0000

The HydroVolt Low Profile series is a rugged and compact right-angle receptacle series of connectors — the most rugged low-profile design available, with a number of advantages over competing designs.

Multiple Shank Lengths

With a right-angle receptacle, you typically need to control the clocking (rotational orientation). A bulkhead-type receptacle handles this with a retaining nut arrangement — but mounting thickness varies by application and depth. With HydroVolt Low Profile connectors, you can specify the shank length and type for your specific application.

Contact Patterns

Dimensions

Nano

dlacuran — Fri, 03 Jul 2026 13:20:07 +0000

Our Nano connectors are very small and dense. They can be this small because there’s no metal shell — they’re molded from a tough dielectric elastomer. Since there’s no external metal shell, they’re substantially more compact.

Dimensions

Downloads

HydroVolt

dlacuran — Thu, 02 Jul 2026 00:27:10 +0000

HydroVolt is the most rugged and reliable, low cost underwater electrical connector available — engineered to fill the gap between economical and premium options, with capabilities like color-coded receptacle leads that competing products at this price point don’t offer.

Features & Benefits

Molded Bending Strain Relief

Integrally molded relief that spreads stress over distance, preventing concentrated flexing at the cable/connector joint.

Color Coded Leads

Bulkhead and overmold leads match their mated cable colors, making conductor tracing easier than numbered tags.

Bulkhead Pressure Block

Machined into the metal shell to resist water intrusion during a catastrophic failure.

Gold Plated Contacts

Plated to ASTM B488-01 Type II for corrosion resistance and consistent conductivity over decades of service.

Crimped Contacts

A mechanically stronger termination than solder alone, more resistant to bending fatigue.

Reinforced Bulkhead Neck

Heavy-duty design that resists head separation during aggressive disconnection.

Improved Overmold Sealing

Extended sealing area with an O-ring upset for enhanced boot sealing.

Pin Shoulder Radius

Facilitates mating in difficult conditions and reduces fraying.

Product Range by Size

HydroVolt is available in three sizes — A (1 in. / 25mm), B (1.15 in. / 32mm), and C (1.60 in. / 41mm).

Bulkheads

10,000 psi pressure differential (open face)
Aluminum, brass, or stainless steel
Available in Sizes A, B, C

Inlines

1 meter standard pigtail length, customizable
Available in Sizes A, B, C

PBOF

Pressure-balanced, oil-filled
Extended sealing area with O-ring upset
Available in Sizes A, B only

Overmold

Standard overmold construction
Available in Sizes A, B only

Dummies

Protective covers for unused receptacles
Available in Sizes A, B, C

Locking Sleeves

Delrin, aluminum, or stainless steel
Available in Sizes A, B, C

Materials & Specifications

Housing Material	Polyurethane overmold
Contact Material	Gold-plated beryllium copper, crimped
Rated Depth	20,000 ft (6,096 m)
Voltage Rating	600 VDC
Operating Temperature	-20°C to 60°C

Part Numbering & Specifications

Use the key below to decode a HydroVolt part number, e.g. BHa-8B-MP-Sp.

Part Numbering Key

Contact Patterns

Contact #	Color
1	Black
2	White
3	Red
4	Green
5	Orange
6	Blue
7	White & Black
8	Red & Black
9	Green & Black
10	Orange & Black
11	Blue & Black
12	Black & White
13	Red & White
14	Green & White
15	Blue & White
16	Black & Red

# Cond	V Rating	OD	Type
2	600	0.36	SOOW
3	600	0.37	SOOW
4	600	0.4	SOOW
5	600	0.5	SOOW
6	600	0.53	SOOW
8	600	0.6	SOOW
10	600	0.64	SOOW
12	600	0.66	SOOW
16	600	0.76	SOOW

Item	Material	Specification	Notes
Body	Neoprene	Virgin Electrical Grade	Proprietary Formulation
Bulkhead	Various	CA-360	Brass, Alum, SS
Electrical Pin	Brass	CA-360	Gold Plated
Orientation Pin	Brass	CA-360	Gold Plated
Cable	Neoprene	SOOW_A	Heavy Duty
Conductors	Teflon	Type E	Color Coded

Component	Spec
Contacts (All)	600 V
Contacts (2-4)	15 Amps
Contacts (6-8)	10 Amps
Ins. Res.	>500 Meg
Test Voltage	500V

Dimension Sheets

Diver

dlacuran — Wed, 01 Jul 2026 00:12:45 +0000

AK Industries supplies a variety of connectors for the dive industry: standard 2- and 4-contact hermaphrodite connectors, new-generation 2- and 4-contact hermaphrodite connectors, as well as RM-style 4-way and EO-style 2-way connectors.

2-Contact Connectors

“Our lineup of 2-contact, hermaphroditic connectors commonly used on dive lights. The standard shank is 3/8-24; also available in 7/16-20.

4-Contact Connectors

Our lineup of 4-contact, hermaphroditic connectors commonly used on dive communications gear, including RM-style 4-way. The standard shank is 3/8-24; also available in 7/16-20.

Dimensions

Downloads

Diver Connectors Dimensions