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Technical Data Sheet
PartsTable / COMPONENT / 11668647
11668647 ✓ 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 COMP 1060, ring_style: INTERNAL STEPPED, usage_design: INTERNAL, inside_diameter: 4.631 INCHES MINIMUM AND 4.712 INCHES MAXIMUM IN, major_thickness: 0.125 INCHES NOMINAL IN, outside_diameter: 5.125 INCHES MINIMUM AND 5.218 INCHES MAXIMUM 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 5325-01-109-1952, 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
11668647
NSN: 5325-01-109-1952
FSC: 5325
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1060
ring_styleINTERNAL STEPPED
usage_designINTERNAL
inside_diameter4.631 INCHES MINIMUM AND 4.712 INCHES MAXIMUM IN
major_thickness0.125 INCHES NOMINAL IN
outside_diameter5.125 INCHES MINIMUM AND 5.218 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleROUNDED CORNERS
material_document_and_classificationAISI 1060 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-01-109-1952
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11668647 · 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
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: STEEL COMP 1060
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1060 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
OUTSIDE DIAMETER: 5.125 INCHES MINIMUM AND 5.218 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.125 INCHES NOMINAL IN
•
USAGE DESIGN: INTERNAL
•
MATERIAL HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALSTEEL COMP 1060
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1060 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
OUTSIDE DIAMETER5.125 INCHES MINIMUM AND 5.218 INCHES MAXIMUM IN
MAJOR THICKNESS0.125 INCHES NOMINAL IN
USAGE DESIGNINTERNAL
MATERIAL HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER4.631 INCHES MINIMUM AND 4.712 INCHES MAXIMUM IN
RING STYLEINTERNAL STEPPED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1924Interchangeable
interchangeable cross-reference
interchangeable
A-A-50553Interchangeable
interchangeable cross-reference
interchangeable
5320Interchangeable
interchangeable cross-reference
interchangeable
6-1-2337-20-492AInterchangeable
interchangeable cross-reference
interchangeable
34372Interchangeable
interchangeable cross-reference
interchangeable
301571Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11668647?
11668647 is a RING,RETAINING.
What parts can replace 11668647?
There are 14 known substitutes for 11668647: 1924, A-A-50553, 5320 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11668647?
11668647 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-109-1952. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026