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PartsTable / COMPONENT / HL51-8-8
HL51-8-8 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The PIN-RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL, head_style: FLUSH COUNTERSUNK, nut_height: 0.290 INCHES NOMINAL IN, grip_length: 0.505 INCHES MAXIMUM IN, shank_style: PIN-RIVET, STRAIGHT, THREADED, nut_diameter: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5320-00-885-9243, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
HL51-8-8
NSN: 5320-00-885-9243
FSC: 5320
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
head_styleFLUSH COUNTERSUNK
nut_height0.290 INCHES NOMINAL IN
grip_length0.505 INCHES MAXIMUM IN
shank_stylePIN-RIVET, STRAIGHT, THREADED
nut_diameter0.375 INCHES NOMINAL IN
pilot_length0.125 INCHES NOMINAL IN
thread_class3B
pilot_diameter0.200 INCHES NOMINAL IN
shank_diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
shear_strength95000 SINGLE POUNDS PER SQUARE INCH
fastener_length0.915 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
NSN5320-00-885-9243
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PIN-RIVET TITLE COMPONENT PN HL51-8-8 MFR PIN-RIVET
KEY FEATURES
•
MATERIAL: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
SHANK DIAMETER: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SHANK STYLE: PIN-RIVET, STRAIGHT, THREADED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
SHANK DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SHANK STYLEPIN-RIVET, STRAIGHT, THREADED
THREAD CLASS3A A
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
HL51-8-8Interchangeable
interchangeable cross-reference
interchangeable
94902-003Interchangeable
interchangeable cross-reference
interchangeable
33C100-832Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HL51-8-8?
HL51-8-8 is a PIN-RIVET.
What parts can replace HL51-8-8?
There are 3 known substitutes for HL51-8-8: HL51-8-8, 94902-003, 33C100-832. Substitute compatibility should be verified for your specific system.
What is the NSN for HL51-8-8?
HL51-8-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5320-00-885-9243. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026