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CA21135-M4R — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CA21135-M4R: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631, ring_style: SPLIT, inside_diameter: 4.521 MILLIMETERS MINIMUM AND 4.674 MILLIMETERS MAXIMUM MM, major_thickness: 0.330 MILLIMETERS MINIMUM AND 0.432 MILLIMETERS MAXIMUM MM, outside_diameter: 6.045 MILLIMETERS MINIMUM AND 6.198 MILLIMETERS MAXIMUM MM, special_features: NOMINAL RING SIZE 4.0 MILLIMETERS MM. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-478-0541, 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
CA21135-M4R
NSN: 5325-01-478-0541
FSC: 5325 — Fastening Devices
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL COMP 631
ring_styleSPLIT
inside_diameter4.521 MILLIMETERS MINIMUM AND 4.674 MILLIMETERS MAXIMUM MM
major_thickness0.330 MILLIMETERS MINIMUM AND 0.432 MILLIMETERS MAXIMUM MM
outside_diameter6.045 MILLIMETERS MINIMUM AND 6.198 MILLIMETERS MAXIMUM MM
special_featuresNOMINAL RING SIZE 4.0 MILLIMETERS MM
surface_treatmentPASSIVATE
cross-sectional_shape_styleROUNDED CORNERS
material_document_and_classificationMIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5325-01-478-0541
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CA21135-M4R · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
OUTSIDE DIAMETER: 6.045 MILLIMETERS MINIMUM AND 6.198 MILLIMETERS MAXIMUM MM
•
MAJOR THICKNESS: 0.330 MILLIMETERS MINIMUM AND 0.432 MILLIMETERS MAXIMUM MM
•
INSIDE DIAMETER: 4.521 MILLIMETERS MINIMUM AND 4.674 MILLIMETERS MAXIMUM MM
•
RING STYLE: SPLIT
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
OUTSIDE DIAMETER6.045 MILLIMETERS MINIMUM AND 6.198 MILLIMETERS MAXIMUM MM
MAJOR THICKNESS0.330 MILLIMETERS MINIMUM AND 0.432 MILLIMETERS MAXIMUM MM
INSIDE DIAMETER4.521 MILLIMETERS MINIMUM AND 4.674 MILLIMETERS MAXIMUM MM
RING STYLESPLIT
SPECIAL FEATURESNOMINAL RING SIZE 4.0 MILLIMETERS MM
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 631
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CA21135-M4R?
CA21135-M4R is a RING,RETAINING.
What is the NSN for CA21135-M4R?
CA21135-M4R is cataloged in the U.S. Government catalog under NSN 5325-01-478-0541. This indicates validated use in U.S. government and defense supply chains.
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