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Technical Data Sheet
PartsTable / COMPONENT / 26S26-11
26S26-11 ✓ 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

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN, material: STEEL COMP 302 STUD, drive_type: SLOTTED, eyelet_length: 0.322 INCHES NOMINAL IN, stud_head_height: 0.093 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-132-6584, 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
26S26-11
NSN: 5325-01-132-6584
FSC: 5325
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
materialSTEEL COMP 302 STUD
drive_typeSLOTTED
eyelet_length0.322 INCHES NOMINAL IN
stud_head_height0.093 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
eyelet_outside_diameter0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
turnlock_stud_head_styleFLAT FILLISTER
material_accommodated_thickness0.330 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
material_document_and_classificationASTM A580 ASSN STD SINGLE MATERIAL RESPONSE STUD
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-01-132-6584
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 26S26-11 · 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
•
EYELET LENGTH: 0.322 INCHES NOMINAL IN
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.851 INCHES NOMINAL IN
•
MATERIAL: COBALT ALLOY PIN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A580 ASSN STD SINGLE MATERIAL RESPONSE STUD
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
EYELET LENGTH0.322 INCHES NOMINAL IN
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.851 INCHES NOMINAL IN
MATERIALCOBALT ALLOY PIN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A580 ASSN STD SINGLE MATERIAL RESPONSE STUD
MATERIALSTEEL COMP 305 EYELET
MATERIALSTEEL COMP 302 STUD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EYELET OUTSIDE DIAMETER0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFLAT FILLISTER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
310FFInterchangeable
interchangeable cross-reference
interchangeable
6310ZZInterchangeable
interchangeable cross-reference
interchangeable
C310BInterchangeable
interchangeable cross-reference
interchangeable
80-103-11Interchangeable
interchangeable cross-reference
interchangeable
L347706Interchangeable
interchangeable cross-reference
interchangeable
1684878Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 26S26-11?
26S26-11 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 26S26-11?
There are 7 known substitutes for 26S26-11: 310FF, 6310ZZ, C310B and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 26S26-11?
26S26-11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-132-6584. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026