PartsTable
Technical Data Sheet
157788 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CABLE ASSEMBLY,FIBER OPTIC is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include shape: STRAIGHT, length: 1.250 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: CARBIDE, mounting_shank: INCLUDED, overall_diameter: 0.625 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 5305-00-015-7788, 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
157788
NSN: 5305-00-015-7788
FSC: 5305
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
shapeSTRAIGHT
length1.250 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialCARBIDE
mounting_shankINCLUDED
overall_diameter0.625 INCHES NOMINAL IN
special_featuresMATERIAL GRADE C-2
style_designatorCYLINDRICAL SHAPE
removability_featureNOT INCLUDED
shank_overall_length2.250 INCHES NOMINAL IN
cutter_tooth_cut_styleMEDIUM
cutting_surface_length1.000 INCHES NOMINAL IN
NSN5305-00-015-7788
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 157788 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD QUANTITY PER INCH: 18
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
SCREW MATERIAL: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
HEAD STYLE: BUTTON
THREAD DIRECTION: RIGHT-HAND
HEAD HEIGHT: 0.162 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH18
NOMINAL THREAD DIAMETER0.312 INCHES IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC ALL MATERIAL RESPONSES
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SCREW MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020
HEAD STYLEBUTTON
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
THREAD LENGTH1.500 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCADMIUM OR ZINC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
157788Interchangeable
interchangeable cross-reference
interchangeable
SC-6Interchangeable
interchangeable cross-reference
interchangeable
SC-6-MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 157788?
157788 is a CABLE ASSEMBLY,FIBER OPTIC.
What parts can replace 157788?
There are 3 known substitutes for 157788: 157788, SC-6, SC-6-M. Substitute compatibility should be verified for your specific system.
What is the NSN for 157788?
157788 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-015-7788. This indicates validated use in U.S. government and defense supply chains.
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