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Technical Data Sheet
PartsTable / COMPONENT / PT535
PT535 ✓ 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 RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: VERTEX OUTSIDE PERIPHERY, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 1.438 INCHES NOMINAL IN, major_thickness: 0.125 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 5325-00-424-5606, 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
PT535
NSN: 5325-00-424-5606
FSC: 5325
CAGE: 77873 — ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. (USA)
SPECIFICATIONS
materialSTEEL
end_styleVERTEX OUTSIDE PERIPHERY
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter1.438 INCHES NOMINAL IN
major_thickness0.125 INCHES NOMINAL IN
outside_diameter1.750 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-424-5606
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PT535 · 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
•
RING STYLE: STRAIGHT GAP
•
MAJOR THICKNESS: 0.125 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
END STYLE: VERTEX OUTSIDE PERIPHERY
•
INSIDE DIAMETER: 1.438 INCHES NOMINAL IN
•
USAGE DESIGN: EXTERNAL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
RING STYLESTRAIGHT GAP
MAJOR THICKNESS0.125 INCHES NOMINAL IN
MATERIALSTEEL
END STYLEVERTEX OUTSIDE PERIPHERY
INSIDE DIAMETER1.438 INCHES NOMINAL IN
USAGE DESIGNEXTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
41E048Interchangeable
interchangeable cross-reference
interchangeable
360383S7A2Interchangeable
interchangeable cross-reference
interchangeable
21E048Interchangeable
interchangeable cross-reference
interchangeable
26706Interchangeable
interchangeable cross-reference
interchangeable
9090270-1Interchangeable
interchangeable cross-reference
interchangeable
NAS907Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PT535?
PT535 is a RING,RETAINING.
What parts can replace PT535?
There are 9 known substitutes for PT535: 41E048, 360383S7A2, 21E048 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PT535?
PT535 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-424-5606. 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