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Technical Data Sheet
NAS835N5A ✓ 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, design_type: THREADED, overall_diameter: 1.000 INCHES NOMINAL IN, special_features: "G" AFTER THE DASH NUMBER IS FOR ALUMINUM ALLOY CAPS WITH NEOPRENE SEALS, surface_treatment: CHROMATE, inside_diameter_length: 0.038 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-355-8455, 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
NAS835N5A
NSN: 5340-01-355-8455
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
design_typeTHREADED
overall_diameter1.000 INCHES NOMINAL IN
special_features"G" AFTER THE DASH NUMBER IS FOR ALUMINUM ALLOY CAPS WITH NEOPRENE SEALS
surface_treatmentCHROMATE
inside_diameter_length0.038 INCHES NOMINAL IN
material_document_and_classificationBAQQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator1/2-20 UNF
tube_outside_diameter_for_which_designed0.312 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
NSN5340-01-355-8455
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS835N5A 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
INSIDE DIAMETER LENGTH: 0.038 INCHES NOMINAL IN
DESIGN TYPE: THREADED
MATERIAL: ALUMINUM ALLOY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
OVERALL DIAMETER: 1.000 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.312 INCHES NOMINAL IN
SURFACE TREATMENT: CHROMATE
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER LENGTH0.038 INCHES NOMINAL IN
DESIGN TYPETHREADED
MATERIALALUMINUM ALLOY
SPECIAL FEATURES"G" AFTER THE DASH NUMBER IS FOR ALUMINUM ALLOY CAPS WITH NEOPRENE SEALS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
OVERALL DIAMETER1.000 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.312 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE
MATERIAL DOCUMENT AND CLASSIFICATIONBAQQ-A-250/2, ALLOY 3003, 0 FED SPEC SINGLE MATERIAL RESPONSE
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-20 UNF
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 NAS835N5A?
NAS835N5A is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace NAS835N5A?
There are 23 known substitutes for NAS835N5A: 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 NAS835N5A?
NAS835N5A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-355-8455. This indicates validated use in U.S. government and defense supply chains.
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