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SIX TWO POLE RELAY CARD/SR623, PMA, 55,000, MARC 70. 305002-01

SIX TWO POLE RELAY CARD/SR623, PMA, 55,000, MARC 70. 305002-01
SIX TWO POLE RELAY CARD/SR623, PMA, 55,000, MARC 70. 305002-01
SIX TWO POLE RELAY CARD/SR623, PMA, 55,000, MARC 70. 305002-01
SR 623 Switching Relay | Six Two-Pole Relays

The SR 623 uses six, two pole hermetically sealed, gas filled relays to provide a total of twelve poles of switching. Relays are qualified to MIL-R-39016/6. For use with the MARC-70 Interface modules.


  • Six relays are individually activated
  • Two pole
  • Hermetically sealed
  • Nitrogen gas filled relays
  • 12 lines of switching

Product Codes

Mfr Part No:305002-01
ECCN:7A994
MIL SPEC:5999-01-534-0771
NSN:5999-01-534-0771
PMA:PQ0894SW
SCHEDULE B CODE:9014.20.8040


Weight: 0.24 lbDimensions: 3.92 x 3.5 x 0.82 in.Voltage: 28VDCCurrent requirement: 250mAAltitude: 70,000 ftOperating temperature: -55ºC to 70ºCCertification: FAA PMAMax Pick up Voltage: 18VDCMin Drop Voltage: 1.5VDCMax Contact Rating: 2A @ 28VDC Resistive Load 0.75A @ 28VDC Inductive Load (200mH) 0.16A @ 28VDC Lamp Load

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  • Stock: Warehouse
  • Manufacturer Part #: 305002-01
$2,085.50
Tags: six , two , pole , relay , card/sr623 , pma , 55000 , marc , 70. , 305002-01 , volt

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Returns & refund summary

  • 30-day return window — with prior return authorization, unopened in original packaging.
  • Restocking fee: 20% on unopened items, 30% on open-box items.
  • Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
  • Return shipping: paid by buyer.
  • Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.

Full terms: Return Policy.

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All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.

See our full Manufacturer Authorizations page for the current per-brand status.

Need traceability paperwork?

If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.

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