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Technical Data Sheet
PartsTable / COMPONENT / CBU1221
CBU1221 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-804-2769, 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
CBU1221
NSN: 5325-00-804-2769
FSC: 5325
CAGE: U5612 — LEYLAND TRUCKS LTD (FOR SPARE PARTS SEE U6425) (GBR)
SPECIFICATIONS
Part NumberCBU1221
NSN5325-00-804-2769
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CBU1221 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
700035Interchangeable
interchangeable cross-reference
interchangeable
52276Interchangeable
interchangeable cross-reference
interchangeable
1009Interchangeable
interchangeable cross-reference
interchangeable
885C052276Interchangeable
interchangeable cross-reference
interchangeable
3901706Interchangeable
interchangeable cross-reference
interchangeable
10250T182C1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CBU1221?
CBU1221 is a RING,RETAINING.
What parts can replace CBU1221?
There are 15 known substitutes for CBU1221: 700035, 52276, 1009 and 12 more. Substitute compatibility should be verified for your specific system.
Is CBU1221 still available?
CBU1221 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