4-1/2 DOC — Technical Data Sheet

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— · ORING SEAL

WHAT YOU NEED TO KNOW

Material determines chemical compatibility Standard durometer is 70 Shore A

Wrong material = catastrophic seal failure

PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM ALLOY 5052, design_type: FRICTION, special_features: 0.032 IN. THK; 0.500 IN.

O/A LG IN, inside_diameter_length: 0.468 INCHES NOMINAL IN, material_document_and_classification: QQ-A-250/8, ALLOY 5052, H32 FED SPEC SINGLE MATERIAL RESPONSE, opening_inside_diameter_for_which_designed: 4.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 5340-01-253-0268, 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

4-1/2 DOC

NSN: 5340-01-253-0268
FSC: 5340
CAGE: 95760 — PROTECTIVE CLOSURES CO INC (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 5052
design_type	FRICTION
special_features	0.032 IN. THK; 0.500 IN. O/A LG IN
inside_diameter_length	0.468 INCHES NOMINAL IN
material_document_and_classification	QQ-A-250/8, ALLOY 5052, H32 FED SPEC SINGLE MATERIAL RESPONSE
opening_inside_diameter_for_which_designed	4.500 INCHES NOMINAL IN
NSN	5340-01-253-0268

COMPONENT DIAGRAM

KEY FEATURES

•

DESIGN TYPE: FRICTION

•

OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 4.500 INCHES NOMINAL IN

•

INSIDE DIAMETER LENGTH: 0.468 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8, ALLOY 5052, H32 FED SPEC SINGLE MATERIAL RESPONSE

•

MATERIAL: ALUMINUM ALLOY 5052

TECHNICAL CHARACTERISTICS

SPECIAL FEATURES	0.032 IN. THK; 0.500 IN. O/A LG IN
DESIGN TYPE	FRICTION
OPENING INSIDE DIAMETER FOR WHICH DESIGNED	4.500 INCHES NOMINAL IN
INSIDE DIAMETER LENGTH	0.468 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/8, ALLOY 5052, H32 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL	ALUMINUM ALLOY 5052

VERIFIED SUBSTITUTES & CROSS-REFERENCES 4

50-4553InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

SU2951-51InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

18-4040InterchangeableGOVERNMENT REGISTRY

interchangeable cross-reference

interchangeable

QQ-A-250/8FInterchangeableGOVERNMENT REGISTRY

Same NIIN cross-reference

interchangeable

LIFECYCLE

StatusACTIVEGOVERNMENT REGISTRY

AvailabilityOEM and secondary market

RoHS CompliantEAR99Not HAZMAT

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FREQUENTLY ASKED QUESTIONS

What is 4-1/2 DOC?

4-1/2 DOC is a CAP,PROTECTIVE,DUST AND MOISTURE.

What parts can replace 4-1/2 DOC?

There are 4 known substitutes for 4-1/2 DOC: 50-4553, SU2951-51, 18-4040 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 4-1/2 DOC?

4-1/2 DOC is cataloged in the Federal Logistics Information System under NSN 5340-01-253-0268. This indicates validated use in U.S. government and defense supply chains.

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