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Technical Data Sheet
PartsTable / COMPONENT / 26017
26017 ✓ 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 RETAINER,ELECTRON TUBE is a the manufacturer industrial component. Key specifications include material: STEEL FILL, face_width: 0.312 INCHES NOMINAL IN, head_style: SQUARE, head_height: 0.125 INCHES NOMINAL IN, trim_length: 0.875 INCHES NOMINAL IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-484-2501, 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
26017
NSN: 5305-00-484-2501
FSC: 5305
CAGE: 24975 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
materialSTEEL FILL
face_width0.312 INCHES NOMINAL IN
head_styleSQUARE
head_height0.125 INCHES NOMINAL IN
trim_length0.875 INCHES NOMINAL IN
thread_class2A A
ignition_typeMAGNETO
overall_width1.314 INCHES NOMINAL IN
stroke_length2.000 INCHES IN
thread_length0.438 INCHES NOMINAL IN
wire_diameter0.0140 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
NSN5305-00-484-2501
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 26017 · 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
•
WIDTH BETWEEN FLATS: 0.250 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.125 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
INTERNAL DRIVE STYLE: SLOT
•
SCREW SURFACE TREATMENT: CADMIUM
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.250 INCHES NOMINAL IN
HEAD HEIGHT0.125 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
FASTENER LENGTH0.625 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
INTERNAL DRIVE STYLESLOT
SCREW SURFACE TREATMENTCADMIUM
THREAD CLASS2A A
SCREW MATERIALSTEEL
HEAD STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
20935Interchangeable
interchangeable cross-reference
interchangeable
711604-1Interchangeable
interchangeable cross-reference
interchangeable
2601-7 WITH HARDWAREInterchangeable
interchangeable cross-reference
interchangeable
26017Interchangeable
interchangeable cross-reference
interchangeable
1104Interchangeable
interchangeable cross-reference
interchangeable
H-B-771Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 26017?
26017 is a RETAINER,ELECTRON TUBE.
What parts can replace 26017?
There are 8 known substitutes for 26017: 20935, 711604-1, 2601-7 WITH HARDWARE and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 26017?
26017 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-484-2501. 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