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03A366-4 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

03A366-4: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM ALLOY OR ALUMINUM ALLOY 3003, design_type: FRICTION, overall_diameter: 0.614 INCHES NOMINAL IN, surface_treatment: CHROMATE, inside_diameter_length: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN, material_document_and_classification: QQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-331-7976, 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
03A366-4
NSN: 5340-01-331-7976
FSC: 5340 — Hardware, Commercial
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OR ALUMINUM ALLOY 3003
design_typeFRICTION
overall_diameter0.614 INCHES NOMINAL IN
surface_treatmentCHROMATE
inside_diameter_length0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE
opening_inside_diameter_for_which_designed0.514 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
surface_treatment_document_and_classificationMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
NSN5340-01-331-7976
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 03A366-4 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 0.614 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.514 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CHROMATE
•
MATERIAL: ALUMINUM ALLOY OR ALUMINUM ALLOY 3003
•
INSIDE DIAMETER LENGTH: 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
DESIGN TYPEFRICTION
OVERALL DIAMETER0.614 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.514 INCHES MINIMUM AND 0.534 INCHES MAXIMUM IN
SURFACE TREATMENTCHROMATE
MATERIALALUMINUM ALLOY OR ALUMINUM ALLOY 3003
INSIDE DIAMETER LENGTH0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 03A366-4?
03A366-4 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 03A366-4?
03A366-4 is cataloged in the U.S. Government catalog under NSN 5340-01-331-7976. This indicates validated use in U.S. government and defense supply chains.
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