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LL-HX4-2389 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LL-HX4-2389: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP 1040 OR STEEL COMP 1044, end_style: 90 DEGREE PARALLEL, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, inside_diameter: 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN, major_thickness: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-224-6017, 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
LL-HX4-2389
NSN: 5325-01-224-6017
FSC: 5325 — Fastening Devices
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL OR STEEL COMP 1040 OR STEEL COMP 1044
end_style90 DEGREE PARALLEL
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
inside_diameter1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
major_thickness0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
outside_diameter2.032 INCHES MINIMUM AND 2.037 INCHES MAXIMUM IN
special_test_featuresSPECIAL CONTROL TESTING
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
NSN5325-01-224-6017
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LL-HX4-2389 · 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
•
USAGE DESIGN: EXTERNAL
•
END STYLE: 90 DEGREE PARALLEL
•
SPECIAL TEST FEATURES: SPECIAL CONTROL TESTING
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A575, COMP 1044 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A576, COMP 1040 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A663 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A675 ASSN STD 1ST MATERIAL RESPONSE OR AISI 1040 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108, COMP 1040 ASSN STD 2ND MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 2.032 INCHES MINIMUM AND 2.037 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
END STYLE90 DEGREE PARALLEL
SPECIAL TEST FEATURESSPECIAL CONTROL TESTING
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A575, COMP 1044 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A576, COMP 1040 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A663 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A675 ASSN STD 1ST MATERIAL RESPONSE OR AISI 1040 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108, COMP 1040 ASSN STD 2ND MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER2.032 INCHES MINIMUM AND 2.037 INCHES MAXIMUM IN
MAJOR THICKNESS0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
INSIDE DIAMETER1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 2
820-4446059Reference document
Same NSN cross-reference
Reference document — Secondary reference
LO-012246017Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LL-HX4-2389?
LL-HX4-2389 is a RING,RETAINING.
What parts can replace LL-HX4-2389?
There are 2 known substitutes for LL-HX4-2389: 820-4446059, LO-012246017. Substitute compatibility should be verified for your specific system.
What is the NSN for LL-HX4-2389?
LL-HX4-2389 is cataloged in the U.S. Government catalog under NSN 5325-01-224-6017. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.