66-76890S — RING,WEARING

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

66-76890S: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, body_style: PLAIN, corner_shape: SQUARE ALL CORNERS, overall_length: 1.000 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES RIGHT FACE, body_inside_diameter: 5.250 INCHES MINIMUM AND 6.251 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-050-4733, 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

66-76890S

NSN: 4320-00-050-4733
FSC: 4320 — Power and Hand Pumps
CAGE: 09647 — AQUA-CHEM, INC. (USA)

SPECIFICATIONS

material	COPPER ALLOY
body_style	PLAIN
corner_shape	SQUARE ALL CORNERS
overall_length	1.000 INCHES NOMINAL IN
surface_finish	125.0 MICROINCHES RIGHT FACE
body_inside_diameter	5.250 INCHES MINIMUM AND 6.251 INCHES MAXIMUM IN
body_outside_diameter	5.650 INCHES NOMINAL IN
material_document_and_classification	QQ-N-288,COMP A FED SPEC SINGLE MATERIAL RESPONSE
NSN	4320-00-050-4733

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES OUTSIDE

•

CORNER SHAPE: SQUARE ALL CORNERS

•

BODY STYLE: PLAIN

•

BODY OUTSIDE DIAMETER: 5.650 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288,COMP A FED SPEC SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES OUTSIDE
SURFACE FINISH	125.0 MICROINCHES LEFT FACE
SURFACE FINISH	125.0 MICROINCHES INSIDE
SURFACE FINISH	125.0 MICROINCHES RIGHT FACE
CORNER SHAPE	SQUARE ALL CORNERS
BODY STYLE	PLAIN
BODY OUTSIDE DIAMETER	5.650 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-288,COMP A FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	1.000 INCHES NOMINAL IN
BODY INSIDE DIAMETER	5.250 INCHES MINIMUM AND 6.251 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 3

66-7689Reference document

Same NSN cross-reference

Reference document — Secondary reference

66-167Reference document

Same NSN cross-reference

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

066-07689-000Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 66-76890S?

66-76890S is a RING,WEARING.

What parts can replace 66-76890S?

There are 3 known substitutes for 66-76890S: 66-7689, 66-167, 066-07689-000. Substitute compatibility should be verified for your specific system.

What is the NSN for 66-76890S?

66-76890S is cataloged in the U.S. Government catalog under NSN 4320-00-050-4733. This indicates validated use in U.S. government and defense supply chains.

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