Part Number: HL221-8-21

Alternate Part Number:
5320-01-414-3660

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CONDITION:
NS
HILOC,
ARCONIC GLOBAL FASTENERS & RINGS, INC.6950
SPS TECHNOLOGIES, LLC56878
HI-SHEAR CORPORATION73197
LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INCL4528
SPS TECHNOLOGIES, LLC56878
HI-SHEAR CORPORATION73197
ALCOA GLOBAL FASTENERS, INC.92215
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.607 INCHES MINIMUM AND 1.627 INCHES MAXIMUM
HEAD STYLEFLUSH COUNTERSUNK
WIDTH BETWEEN FLATS0.0067 INCHES MINIMUM AND 0.0947 INCHES MAXIMUM
SHANK DIAMETER0.2707 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM
SHANK STYLEPIN-RIVET, STRAIGHT, THREADED
HEAD MAJOR DIAMETER0.5060 INCHES MINIMUM AND 0.6018 INCHES MAXIMUM
END ITEM IDENTIFICATIONW/S: AIRCRAFT, STRATOLIFTER C-135
GRIP LENGTH1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH5820 POUNDS PER SQUARE INCH
NOMINAL THREAD SIZE0.250 INCHES
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
SPECIAL FEATURESPIN AND COLLAR COMBINATION
MATERIALSTEEL COMP E4340 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNJF
A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. A locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. The shank may include an external wrenching facility which breaks off at a predetermined applied torque.