CR21-3 — PIN,COTTER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

CR21-3: PIN,COTTER.

The PIN,COTTER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL, thickness: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN, key_height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, circle_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MAXIMUM OVERALL, style_designator: ROUND BOTTOM. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-687-5218, 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

CR21-3

NSN: 5315-00-687-5218
NIINs: 006875218, 015133441
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)

SPECIFICATIONS

material	STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
thickness	0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
key_height	0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
circle_diameter	0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
hardness_rating	45.0 ROCKWELL C MAXIMUM OVERALL
style_designator	ROUND BOTTOM
starting_edge_shape	ROUND
key_size_designation	WOODRUFF 213
starting_edge_radius	0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
end_item_identification	RQ-1
part_name_assigned_by_controlling_agency	PIN,COTTER
NSN	5315-00-687-5218

COMPONENT DIAGRAM

KEY FEATURES

•

HARDNESS RATING: 45.0 ROCKWELL C MAXIMUM OVERALL

•

STARTING EDGE SHAPE: ROUND

•

STYLE DESIGNATOR: ROUND BOTTOM

•

CIRCLE DIAMETER: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN

•

KEY HEIGHT: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN

•

KEY SIZE DESIGNATION: WOODRUFF 213

•

STARTING EDGE RADIUS: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

HARDNESS RATING	45.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPE	ROUND
STYLE DESIGNATOR	ROUND BOTTOM
CIRCLE DIAMETER	0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
KEY HEIGHT	0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
KEY SIZE DESIGNATION	WOODRUFF 213
STARTING EDGE RADIUS	0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
END ITEM IDENTIFICATION	MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
MATERIAL	STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
THICKNESS	0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 9

214RReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

X79217Reference document

Same NSN cross-reference

Reference document — Secondary reference

10386409Reference document

Same NSN cross-reference

Reference document — Informative reference only

531586-6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

K1-6Reference document

Same NSN cross-reference

Reference document — Secondary reference

MS35756-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is CR21-3?

CR21-3 is a PIN,COTTER.

What parts can replace CR21-3?

There are 9 known substitutes for CR21-3: 214R, X79217, 10386409 and 6 more. Substitute compatibility should be verified for your specific system.

What is the NSN for CR21-3?

CR21-3 is cataloged in the U.S. Government catalog under NSN 5315-00-687-5218. This indicates validated use in U.S. government and defense supply chains.

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