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129351 — Technical Data Sheet

✓ 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,FIBER OPTIC is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: STEEL COMP 1118 OVERALL, head_style: FLAT COUNTERSUNK, head_diameter: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, fastener_length: 0.750 INCHES NOMINAL IN, special_features: ST-TYPE(CERAMIC) CONNECTOR ON EACH END, countersink_angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-012-9351, 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
129351
NSN: 5305-00-012-9351
FSC: 5305
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1118 OVERALL
head_styleFLAT COUNTERSUNK
head_diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
fastener_length0.750 INCHES NOMINAL IN
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentCADMIUM OVERALL
internal_drive_styleSLOT
nonmachine_nominal_thread_diameter0.164 INCHES IN
material_document_and_classificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5305-00-012-9351
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 129351 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
MATERIAL: STEEL COMP 1118 OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
INTERNAL DRIVE STYLE: SLOT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.292 INCHES MINIMUM AND 0.332 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)
NONMACHINE NOMINAL THREAD DIAMETER0.164 INCHES IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
MATERIALSTEEL COMP 1118 OVERALL
SURFACE TREATMENTCADMIUM OVERALL
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FASTENER LENGTH0.750 INCHES NOMINAL IN
HEAD DIAMETER0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
HEAD STYLEFLAT COUNTERSUNK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
4577Interchangeable
interchangeable cross-reference
interchangeable
1181CInterchangeable
interchangeable cross-reference
interchangeable
1326-17Interchangeable
interchangeable cross-reference
interchangeable
1181Interchangeable
interchangeable cross-reference
interchangeable
B11-0004-000Interchangeable
interchangeable cross-reference
interchangeable
AN550-8-6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 129351?
129351 is a CABLE,FIBER OPTIC.
What parts can replace 129351?
There are 6 known substitutes for 129351: 4577, 1181C, 1326-17 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 129351?
129351 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-012-9351. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026