PartsTable
Technical Data Sheet
NAS817-4 ✓ 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, design_type: THREADED, thread_class: 1B, overall_diameter: 0.563 INCHES NOMINAL IN, surface_treatment: ANODIZE, inside_diameter_length: 0.563 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-682-2113, 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
NAS817-4
NSN: 5340-00-682-2113
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM
design_typeTHREADED
thread_class1B
overall_diameter0.563 INCHES NOMINAL IN
surface_treatmentANODIZE
inside_diameter_length0.563 INCHES NOMINAL IN
round_cap_outside_surface_conditionSERRATED
thread_size_and_series/type_designator7/16-20 UNIFIED NATIONAL COARSE (UNC)
NSN5340-00-682-2113
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS817-4 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
OVERALL DIAMETER: 0.563 INCHES NOMINAL IN
DESIGN TYPE: THREADED
MATERIAL: ALUMINUM
SURFACE TREATMENT: ANODIZE
INSIDE DIAMETER LENGTH: 0.563 INCHES NOMINAL IN
THREAD CLASS: 1B
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/16-20 UNIFIED NATIONAL COARSE (UNC)
ROUND CAP OUTSIDE SURFACE CONDITION: SERRATED
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.563 INCHES NOMINAL IN
DESIGN TYPETHREADED
MATERIALALUMINUM
SURFACE TREATMENTANODIZE
INSIDE DIAMETER LENGTH0.563 INCHES NOMINAL IN
THREAD CLASS1B
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/16-20 UNIFIED NATIONAL COARSE (UNC)
ROUND CAP OUTSIDE SURFACE CONDITIONSERRATED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
3038-9012PC4Upgraded Successor
successor cross-reference
successor
4Upgraded Successor
successor cross-reference
successor
6R4Upgraded Successor
successor cross-reference
successor
M5501/1-4Upgraded Successor
successor cross-reference
successor
10117358Upgraded Successor
successor cross-reference
successor
5-4Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS817-4?
NAS817-4 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace NAS817-4?
There are 8 known substitutes for NAS817-4: 3038-9012PC4, 4, 6R4 and 5 more. Substitute compatibility should be verified for your specific system.
Is NAS817-4 still available?
NAS817-4 is currently cancelled.
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