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PartsTable / COMPONENT / RDK 7668
RDK 7668 ✓ 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 BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 0.094 INCHES NOMINAL IN, head_height: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.656 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-527-4952, 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
RDK 7668
NSN: 5306-00-527-4952
FSC: 5306
CAGE: U0759 — SCAMMELL MOTORS BRITISH LEYLAND UK LTD (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length0.094 INCHES NOMINAL IN
head_height0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_class2A A
thread_length0.656 INCHES NOMINAL IN
fastener_length0.750 INCHES NOMINAL IN
locking_featureDISTORTIONS BEARING SURFACE OF HEAD
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
NSN5306-00-527-4952
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RDK 7668 · 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
•
WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
GRIP LENGTH: 0.094 INCHES NOMINAL IN
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL: STEEL OVERALL
•
HEAD HEIGHT: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD CLASS2A A
GRIP LENGTH0.094 INCHES NOMINAL IN
FEATURES PROVIDEDFINISHED HEAD
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL OVERALL
HEAD HEIGHT0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.750 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
ASC1494351Interchangeable
interchangeable cross-reference
interchangeable
3AG4AInterchangeable
interchangeable cross-reference
interchangeable
X48170Interchangeable
interchangeable cross-reference
interchangeable
5305002924590Interchangeable
interchangeable cross-reference
interchangeable
9409042Interchangeable
interchangeable cross-reference
interchangeable
62.90.020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RDK 7668?
RDK 7668 is a BOLT,MACHINE.
What parts can replace RDK 7668?
There are 15 known substitutes for RDK 7668: ASC1494351, 3AG4A, X48170 and 12 more. Substitute compatibility should be verified for your specific system.
Is RDK 7668 still available?
RDK 7668 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