Part identity

20507-12

Fastener Length: 0.250 inches nominal Head Style: A39 flat countersunk Nominal Thread Diameter: 0.112 inches

Jordan Electronics Div Phaostron

Avg quote: 14 minFulfilled from Anaheim, CAAS9120:2025 · ISO 9001 · FAA AC 00-56BC of C, lot & date code with every line

Part description

Fastener Length: 0.250 inches nominal Head Style: A39 flat countersunk Nominal Thread Diameter: 0.112 inches

ASAP supports this specific part for replacement, spare-pool replenishment, retrofit, and urgent maintenance requirements. Quote requests can include alternate MPN, condition preferences, certification needs, and plant-specific receiving instructions so procurement gets a clear sourcing response before purchase.

Specifications

MPN
20507-12
Item name
Fastener Length: 0.250 inches nominal Head Style: A39 flat countersunk Nominal Thread Diameter: 0.112 inches
Manufacturer code
01878
Manufacturer
Jordan Electronics Div Phaostron

Certifications & documentation

  • UL Recognized
  • CE
  • C of C available on request
JE

Manufacturer

Jordan Electronics Div Phaostron

Authorized-distributor or qualified-aftermarket source. Parts shipped from this manufacturer include full traceability paperwork and counterfeit-mitigation per SAE AS6081.

View manufacturer profile →

Characteristics Data of NSN 5305-00-655-9900, 5305006559900

MRCCriteriaCharacteristic
AAJDTHREAD CLASS2A
AAJFTHREAD DIRECTIONRIGHT-HAND
AASATHREAD LENGTH0.250 INCHES MAXIMUM
AASBFASTENER LENGTH0.250 INCHES NOMINAL
AASKHEAD STYLEFLAT COUNTERSUNK
AASLHEAD DIAMETER0.200 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
ABQZINTERNAL DRIVE STYLESLOT
AHYMNOMINAL THREAD DIAMETER0.112 INCHES
CMLPTHREAD QUANTITY PER INCH40
CRSQCOUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
CYAUSCREW MATERIALSTEEL
CYBASCREW SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE
THSDTHREAD SERIES DESIGNATORUNC
Integrated Electromechanicals

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Certifications

  • AS9120:2025
  • ISO 9001:2015
  • FAA AC 00-56B
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USA fulfillment. Every order shipped from our Anaheim, California operations. Counterfeit-mitigation aligned to SAE AS5553 / AS6081.

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  • AS9120:2025
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