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Technical Data Sheet
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RR53 ✓ 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 SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, end_style: SPRING END,PLAIN LUBRICATION FITTINGS, ring_style: INTERNAL STEPPED, usage_design: INTERNAL, coil_quantity: 14, stock_diameter: 0.040 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 5325-00-579-7044, 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
RR53
NSN: 5325-00-579-7044
FSC: 5325
CAGE: 80756 — SPIROLOX INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
end_styleSPRING END,PLAIN LUBRICATION FITTINGS
ring_styleINTERNAL STEPPED
usage_designINTERNAL
coil_quantity14
stock_diameter0.040 INCHES NOMINAL IN
inside_diameter0.670 INCHES NOMINAL IN
major_thickness0.045 INCHES NOMINAL IN
outside_diameter0.564 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentPASSIVATE OVERALL
spring_free_length2.500 INCHES NOMINAL IN
NSN5325-00-579-7044
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RR53 · 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
•
INSIDE DIAMETER: 0.474 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 0.564 INCHES NOMINAL IN
•
USAGE DESIGN: INTERNAL
•
RING STYLE: INTERNAL STEPPED
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MAJOR THICKNESS: 0.045 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.474 INCHES NOMINAL IN
MATERIALSTEEL
OUTSIDE DIAMETER0.564 INCHES NOMINAL IN
USAGE DESIGNINTERNAL
RING STYLEINTERNAL STEPPED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CASEHARDENING INDICATORNOT CASEHARDENED
MAJOR THICKNESS0.045 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
444655Interchangeable
interchangeable cross-reference
interchangeable
WW-P-471ACBBCBInterchangeable
interchangeable cross-reference
interchangeable
WWP471Interchangeable
interchangeable cross-reference
interchangeable
444654Interchangeable
interchangeable cross-reference
interchangeable
GM444654Interchangeable
interchangeable cross-reference
interchangeable
20740074Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RR53?
RR53 is a SPRING,HELICAL,COMPRESSION.
What parts can replace RR53?
There are 10 known substitutes for RR53: 444655, WW-P-471ACBBCB, WWP471 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RR53?
RR53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-579-7044. 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