Part identity

1 4-28 X 5 8

Screw Cap Hexagon Head

Arlington Air Parts Inc

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

Part description

Screw Cap Hexagon Head

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
1 4-28 X 5 8
Item name
Screw Cap Hexagon Head
Manufacturer code
9H691
Manufacturer
Arlington Air Parts Inc

Certifications & documentation

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

Manufacturer

Arlington Air Parts Inc

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

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NSN Information for Part Number 1 4-28 X 5 8 with NSN 5305-00-688-2020, 5305006882020

NSNFSCNIINCLSHazmatDEMILCancelled NSN
5305006882020

Item Description:

Screw Cap Hexagon Head

53050068820200N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
1 4-28 X 5 821CA

Characteristics Data of NSN 5305-00-688-2020, 5305006882020

MRCCriteriaCharacteristic
AAJDTHREAD CLASS2A
AAJFTHREAD DIRECTIONRIGHT-HAND
AASATHREAD LENGTH0.625 INCHES MAXIMUM
AASBFASTENER LENGTH0.625 INCHES NOMINAL
AASKHEAD STYLEHEXAGON
AASUHEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
AATBWIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
AHYMNOMINAL THREAD DIAMETER0.250 INCHES
CQBCMINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MATTMATERIALSTEEL COMP 302 OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 316 OVERALL
SFTTSURFACE TREATMENTPASSIVATE OVERALL
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CMLPTHREAD QUANTITY PER INCH28
MDCLMATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
THSDTHREAD SERIES DESIGNATORUNF
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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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