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Technical Data Sheet
PartsTable / COMPONENT / 477180
477180 ✓ 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: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL OR INTERNAL, inside_diameter: 1.921 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN, major_thickness: 0.250 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 5325-00-118-6612, 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
477180
NSN: 5325-00-118-6612
FSC: 5325
CAGE: 77640 — ZF ACTIVE SAFETY AND ELECTRONICS US LLC DIV TRW COMMERCIAL STEERING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL OR INTERNAL
inside_diameter1.921 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN
major_thickness0.250 INCHES NOMINAL IN
outside_diameter2.021 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-118-6612
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 477180 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
RING STYLE: STRAIGHT GAP
•
MAJOR THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 2.021 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
USAGE DESIGN: EXTERNAL OR INTERNAL
•
INSIDE DIAMETER: 1.921 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
RING STYLESTRAIGHT GAP
MAJOR THICKNESS0.250 INCHES NOMINAL IN
MATERIALSTEEL
OUTSIDE DIAMETER2.021 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
USAGE DESIGNEXTERNAL OR INTERNAL
INSIDE DIAMETER1.921 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN
END STYLE90 DEGREE PARALLEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
73682Interchangeable
interchangeable cross-reference
interchangeable
1121-545Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-55021/1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-55021/1Interchangeable
interchangeable cross-reference
interchangeable
7368-2-SInterchangeable
interchangeable cross-reference
interchangeable
K2010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 477180?
477180 is a RING,RETAINING.
What parts can replace 477180?
There are 6 known substitutes for 477180: 73682, 1121-545, MIL-C-55021/1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 477180?
477180 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-118-6612. 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