Part detail

Fastener Length: 1.888 inches minimum and 1.934 inches maximum Head Style: C50 flat countersunk Nominal Thread Diameter: 0.438 inches

73991H-7D23NSN5305-01-014-4258CAGEC4293

Fastener Length: 1.888 inches minimum and 1.934 inches maximum Head Style: C50 flat countersunk Nominal Thread Diameter: 0.438 inches

Detailed description

73991H-7D23 procurement notes

Fastener Length: 1.888 inches minimum and 1.934 inches maximum Head Style: C50 flat countersunk Nominal Thread Diameter: 0.438 inches

Specifications

Reference data

Manufacturer
Alcoa Fastening Systems
Part number
73991H-7D23
NSN
5305-01-014-4258
NIIN
01-014-4258
FSC
5305 Screws
CAGE code
C4293
Multi-line procurement

Sourcing more than one part?

Upload a bill of materials (BOM) or paste a list of part numbers — every line bundles into a single RFQ. No checkout, no payment.

Upload BOMPaste part numbers →
Compliance
  • AS9120:2025· Aerospace QMS
  • ISO 9001:2015· Quality Management
  • FAA AC 00-56B· Voluntary Industry Distributor Accreditation
  • U.S. ONLY· Fulfillment

NSN Information for Part Number 73991H-7D23 with NSN 5305-01-014-4258, 5305010144258

NSNFSCNIINCLSHazmatDEMILCancelled NSN
5305010144258

Item Description:

Screw Close Toleran

53050101442580N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
73991h-7d23223

Characteristics Data of NSN 5305-01-014-4258, 5305010144258

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3A
AAJFTHREAD DIRECTIONRIGHT-HAND
AASATHREAD LENGTH0.466 INCHES NOMINAL
AASBFASTENER LENGTH1.888 INCHES MINIMUM AND 1.934 INCHES MAXIMUM
AASKHEAD STYLEFLAT COUNTERSUNK
AASLHEAD DIAMETER0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
AAURGRIP DIAMETER0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
AAWBSHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM FIRST HOLE AND 0.111 INCHES MAXIMUM FIRST HOLE
ABQZINTERNAL DRIVE STYLEHIGH-TORQUE
AHYMNOMINAL THREAD DIAMETER0.438 INCHES
ANEEGRIP LENGTH1.429 INCHES MINIMUM AND 1.448 INCHES MAXIMUM
CMLPTHREAD QUANTITY PER INCH20
CRSQCOUNTERSINK ANGLE100.0 DEGREES NOMINAL
CRZSDISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.760 INCHES MINIMUM FIRST HOLE AND 1.816 INCHES MAXIMUM FIRST HOLE
MATTMATERIALSTEEL OVERALL
SFTTSURFACE TREATMENTCADMIUM OVERALL
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMAC PS13145,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THSDTHREAD SERIES DESIGNATORUNJF
ZZZKSPECIFICATION/STANDARD DATA76301-ST3-562 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Mission ready

Send a quote line
get a response in 15 minutes.

ASAP Military Supplies

An ASAP Semiconductor web resource. Parts procurement for U.S. military, defense, and aerospace operators.

1341 South Sunkist Street, Anaheim, CA 92806
Accreditations
NBAA Member
NBAANBAA Member
ASA (Aviation Suppliers Association)
ASAASA (Aviation Suppliers Association)
AS6081 Certified Supplier
AS6081AS6081 Certified Supplier
FAA AC 00-56B Certified
FAA AC 00-56BFAA AC 00-56B Certified
© 2026 ASAP Semiconductor LLC. All rights reserved.
VisaMastercardDiscoverAmEx