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Technical Data Sheet
PartsTable / COMPONENT / 1854P172
1854P172 ✓ 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: D SHAP BELOW INSIDE PERIPHERY, ring_style: INTERNAL, usage_design: INTERNAL, inside_diameter: 3.683 INCHES NOMINAL IN, major_thickness: 0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-752-1374, 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
1854P172
NSN: 5325-00-752-1374
FSC: 5325
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL
end_styleD SHAP BELOW INSIDE PERIPHERY
ring_styleINTERNAL
usage_designINTERNAL
inside_diameter3.683 INCHES NOMINAL IN
major_thickness0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
outside_diameter4.120 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-752-1374
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1854P172 · 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
•
MAJOR THICKNESS: 0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 4.120 INCHES NOMINAL IN
•
USAGE DESIGN: INTERNAL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
END STYLE: D SHAP BELOW INSIDE PERIPHERY
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
MAJOR THICKNESS0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
MATERIALSTEEL
OUTSIDE DIAMETER4.120 INCHES NOMINAL IN
USAGE DESIGNINTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
END STYLED SHAP BELOW INSIDE PERIPHERY
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIAL HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER3.683 INCHES NOMINAL IN
RING STYLEINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
3386245Interchangeable
interchangeable cross-reference
interchangeable
800521-87Interchangeable
interchangeable cross-reference
interchangeable
800521Interchangeable
interchangeable cross-reference
interchangeable
913-658Interchangeable
interchangeable cross-reference
interchangeable
702T5Interchangeable
Same NIIN cross-reference
interchangeable
5340007521374Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1854P172?
1854P172 is a RING,RETAINING.
What parts can replace 1854P172?
There are 6 known substitutes for 1854P172: 3386245, 800521-87, 800521 and 3 more. Substitute compatibility should be verified for your specific system.
Is 1854P172 still available?
1854P172 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026