PartsTable
Technical Data Sheet
LL-HX4-7899 ✓ 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 ring_style: EXTERNAL, usage_design: EXTERNAL, inside_diameter: 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, major_thickness: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN, special_test_features: SPECIAL QUALITY CONTROL TESTING, casehardening_indicator: NOT CASEHARDENED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-245-3324, 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-HX4-7899
NSN: 5325-01-245-3324
FSC: 5325
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
ring_styleEXTERNAL
usage_designEXTERNAL
inside_diameter0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
major_thickness0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
special_featuresAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
special_test_featuresSPECIAL QUALITY CONTROL TESTING
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating47.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleRECTANGULAR
criticality_code_justificationFEAT
NSN5325-01-245-3324
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LL-HX4-7899 · 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
MAJOR THICKNESS: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATION: FEAT
MATERIAL: STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
TEST DATA DOCUMENT: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, COMP 1060 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1064 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1065 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1070 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 10TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 11TH MATERIAL RESPONSE
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
MATERIALSTEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, COMP 1060 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1064 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1065 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1070 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 10TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 11TH MATERIAL RESPONSE
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
559-1561-065Interchangeable
interchangeable cross-reference
interchangeable
CB4722Interchangeable
interchangeable cross-reference
interchangeable
12-712004-72Interchangeable
interchangeable cross-reference
interchangeable
510068Interchangeable
interchangeable cross-reference
interchangeable
3100-68Interchangeable
interchangeable cross-reference
interchangeable
W4510-68Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LL-HX4-7899?
LL-HX4-7899 is a RING,RETAINING.
What parts can replace LL-HX4-7899?
There are 12 known substitutes for LL-HX4-7899: 559-1561-065, CB4722, 12-712004-72 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LL-HX4-7899?
LL-HX4-7899 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-245-3324. This indicates validated use in U.S. government and defense supply chains.
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