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Technical Data Sheet
NAS835N6A ✓ Verified by PartsTable
· 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 3003, design_type: THREADED, thread_class: 3B, surface_treatment: ANODIZE, inside_diameter_length: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, round_cap_outside_surface_condition: KNURLED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-371-9555, 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
NAS835N6A
NSN: 5340-01-371-9555
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 3003
design_typeTHREADED
thread_class3B
surface_treatmentANODIZE
inside_diameter_length0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
round_cap_outside_surface_conditionKNURLED
thread_size_and_series/type_designator0.562-18 UNF
tube_outside_diameter_for_which_designed0.375 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
connector_nominal_thread_size_for_which_designed0.5625 INCHES IN
NSN5340-01-371-9555
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS835N6A 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
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
THREAD CLASS: 3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
DESIGN TYPE: THREADED
CONNECTOR NOMINAL THREAD SIZE FOR WHICH DESIGNED: 0.5625 INCHES IN
SURFACE TREATMENT: ANODIZE
MATERIAL: ALUMINUM ALLOY 3003
TECHNICAL CHARACTERISTICS (FLIS)
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
THREAD CLASS3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
DESIGN TYPETHREADED
CONNECTOR NOMINAL THREAD SIZE FOR WHICH DESIGNED0.5625 INCHES IN
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 3003
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.562-18 UNF
INSIDE DIAMETER LENGTH0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
M5501/3-R10Upgraded Successor
successor cross-reference
successor
MILC5501Upgraded Successor
successor cross-reference
successor
S8625-7-8-14Upgraded Successor
successor cross-reference
successor
6-16Upgraded Successor
successor cross-reference
successor
5340PL1450718Upgraded Successor
successor cross-reference
successor
118170Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS835N6A?
NAS835N6A is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace NAS835N6A?
There are 23 known substitutes for NAS835N6A: M5501/3-R10, MILC5501, S8625-7-8-14 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS835N6A?
NAS835N6A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-371-9555. This indicates validated use in U.S. government and defense supply chains.
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