221813A — LOCK,VALVE SPRING RETAINER

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

221813A: LOCK,VALVE SPRING RETAINER.

The LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include material: STEEL, overall_height: 0.125 INCHES NOMINAL IN, style_designator: STRAIGHT BORE-ALL CORNERS CHAMFERED-STRAIGHT SIDES, thread_provision: UNTHREADED, casehardening_indicator: NOT CASEHARDENED, minimum_inside_diameter: 0.343 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-386-3376, 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

221813A

NSN: 2805-00-386-3376
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)

SPECIFICATIONS

material	STEEL
overall_height	0.125 INCHES NOMINAL IN
style_designator	STRAIGHT BORE-ALL CORNERS CHAMFERED-STRAIGHT SIDES
thread_provision	UNTHREADED
casehardening_indicator	NOT CASEHARDENED
minimum_inside_diameter	0.343 INCHES IN
largest_outside_diameter	0.678 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
metallic_hardness_rating	60.0 MINIMUM ROCKWELL C
largest_top_countersink_diameter	0.416 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN
largest_bottom_countersink_diameter	0.416 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN
material_document_and_classification	QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE
largest_outside_diameter_chamfer_angle_in_deg	45.0
NSN	2805-00-386-3376

COMPONENT DIAGRAM

KEY FEATURES

•

MINIMUM INSIDE DIAMETER: 0.343 INCHES IN

•

THREAD PROVISION: UNTHREADED

•

LARGEST OUTSIDE DIAMETER: 0.678 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN

•

LARGEST OUTSIDE DIAMETER CHAMFER ANGLE IN DEG: 45.0

•

LARGEST TOP COUNTERSINK DIAMETER: 0.416 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: STRAIGHT BORE-ALL CORNERS CHAMFERED-STRAIGHT SIDES

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.125 INCHES NOMINAL IN
MINIMUM INSIDE DIAMETER	0.343 INCHES IN
THREAD PROVISION	UNTHREADED
LARGEST OUTSIDE DIAMETER	0.678 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
LARGEST OUTSIDE DIAMETER CHAMFER ANGLE IN DEG	45.0
LARGEST TOP COUNTERSINK DIAMETER	0.416 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN
STYLE DESIGNATOR	STRAIGHT BORE-ALL CORNERS CHAMFERED-STRAIGHT SIDES
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE
CASEHARDENING INDICATOR	NOT CASEHARDENED
LARGEST BOTTOM COUNTERSINK DIAMETER	0.416 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 1

32024AReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 221813A?

221813A is a LOCK,VALVE SPRING RETAINER.

What parts can replace 221813A?

There is 1 known substitute for 221813A: 32024A. Substitute compatibility should be verified for your specific system.

What is the NSN for 221813A?

221813A is cataloged in the U.S. Government catalog under NSN 2805-00-386-3376. This indicates validated use in U.S. government and defense supply chains.

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221813A — LOCK,VALVE SPRING RETAINER

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