Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: ALUMINUM ALLOY 3003, drive_type: SERRATED OR SQUARE HEAD OR HEX SOCKET, design_type: THREADED, overall_diameter: 0.660 INCHES NOMINAL IN, surface_treatment: CHROMATE OR ANODIZE, material_document_and_classification: QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1238, 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
NAS842-4A
NSN:5340-00-804-1238 FSC:5340 CAGE:80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
material
ALUMINUM ALLOY 3003
drive_type
SERRATED OR SQUARE HEAD OR HEX SOCKET
design_type
THREADED
overall_diameter
0.660 INCHES NOMINAL IN
surface_treatment
CHROMATE OR ANODIZE
material_document_and_classification
QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator
7/16-20 NF
surface_treatment_document_and_classification
MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE A
NSN
5340-00-804-1238
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 3003
•
SURFACE TREATMENT: CHROMATE OR ANODIZE
•
OVERALL DIAMETER: 0.660 INCHES NOMINAL IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/16-20 NF
•
DRIVE TYPE: SERRATED OR SQUARE HEAD OR HEX SOCKET
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE A
•
DESIGN TYPE: THREADED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATION
QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL
ALUMINUM ALLOY 3003
SURFACE TREATMENT
CHROMATE OR ANODIZE
OVERALL DIAMETER
0.660 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR
7/16-20 NF
DRIVE TYPE
SERRATED OR SQUARE HEAD OR HEX SOCKET
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE A
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FREQUENTLY ASKED QUESTIONS
What is NAS842-4A?
NAS842-4A is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace NAS842-4A?
There are 12 known substitutes for NAS842-4A: NAS847, MIL-C-5501/7, M5501/7-F24 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS842-4A?
NAS842-4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1238. This indicates validated use in U.S. government and defense supply chains.
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