Glenair M39029/77-429 crimp socket contact – LOT OF 6

Product Description

Glenair M39029/77-429 – Military-Specification Crimp Socket Contact (Size 20, Gold-Plated)

A qualified MIL-SPEC crimp socket contact from Glenair, manufactured to the stringent requirements of M39029/77-429. This size 20 socket contact is designed for use in military, aerospace, and high-reliability circular connectors (such as MIL-DTL-38999, MIL-DTL-26482, and similar series). Gold-plated for corrosion resistance and low contact resistance, and configured for 20-24 AWG wire.

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🔍 Key Specifications & Details:

📡 Military Standard Compliance:

• Manufacturer: Glenair (qualified to M39029)

• Basic Part Number: M39029/77-429

• Military Specification: SAE AS39029/77 – qualified contact

• Connector Series Compatibility: MIL-DTL-38999 Series I, II, III, IV; MIL-DTL-26482 Series II; MIL-DTL-83723 Series III; and others accepting size 20 contacts

🔌 Contact Specifications:

• Type: Crimp socket (female)

• Contact Size: #20 (accepts 20-24 AWG wire)

• Material: Copper alloy

• Plating: Gold over nickel – excellent conductivity, corrosion resistance

• Contact Resistance: Low (per MIL-SPEC)

• Current Rating: 7.5 amps (typical per MIL-STD)

🔧 Crimp & Termination:

• Wire Range: 20-24 AWG (stranded or solid, MIL-SPEC wire types)

• Insulation Diameter: Accepts appropriate MIL-SPEC wire insulation

• Crimp Tool: M22520/1-01 (Daniels) or equivalent, with appropriate turret/positioner

• Insertion/Removal Tool: As specified for connector series

✅ Condition & Notes:

• Condition: NEW OLD STOCK (NOS) – SURPLUS

• Visual: Contacts appear unused – no oxidation, bending, or damage. Gold finish intact.

• Testing: Untested – sold AS-IS; assumes factory quality

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⚙️ Why This Contact is Critical:

🔬 MIL-SPEG Quality – No Compromises:
Contacts manufactured to M39029 must pass rigorous:

• Mechanical tests – crimp tensile strength, insertion/withdrawal forces

• Environmental tests – corrosion, vibration, thermal shock

• Electrical tests – contact resistance, current cycling

• This is not commercial hardware – it’s certified for mission-critical systems

💎 Gold-Plated Reliability:
The gold-over-nickel plating provides:

• Low and stable contact resistance – microvolt-level signals unaffected

• Corrosion protection – survives salt fog, humidity, industrial atmospheres

• Mating durability – withstands hundreds of mating cycles

🔄 Wide Compatibility:
The M39029/77-429 socket is used in countless military and aerospace connectors:

• MIL-DTL-38999 – Series I, II, III, IV (all major shell sizes)

• MIL-DTL-26482 – Series II (KPT, KPSE, etc.)

• MIL-DTL-83723 – Series III

• ARINC 600/404 – some applications

• Commercial equivalents – many industrial connectors accept these contacts

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🛠️ Applications & Uses:

✈️ Aerospace & Defense:

• Avionics systems – flight computers, sensors, displays

• Military vehicles – ground, naval, airborne platforms

• Weapons systems – missile guidance, launch control

• Satellites & space vehicles – high-reliability connections

🔧 Industrial High-Reliability:

• Oil & gas drilling – downhole tools, surface equipment

• Nuclear power – safety-related instrumentation

• Medical devices – surgical equipment, patient monitors

• Test & measurement – automated test equipment interfaces

🛠️ Maintenance & Repair:

• Replace damaged contacts in existing connectors

• Build custom cable assemblies with MIL-SPEC connectors

• Restore vintage military equipment – exact replacement parts

• Spare inventory – for mission-critical systems

🔌 Connector Assembly:

• New harness fabrication – for prototype or production

• Field repair kits – include contacts for on-site maintenance

• Qualification testing – build test fixtures with qualified components

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📋 Cross-Reference & Equivalents:

Note: M39029 contacts are interchangeable between qualified manufacturers. All meet the same MIL-SPEC requirements.