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401816-1 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

401816-1: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED BOTH ENDS, inside_diameter: 0.344 INCHES NOMINAL IN, style_designator: CYLINDRICAL, features_provided: ELECTROSTATIC SENSITIVE, spring_free_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-268-0201, 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
401816-1
NSN: 4730-01-268-0201
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED BOTH ENDS
coil_quantity4
inside_diameter0.344 INCHES NOMINAL IN
style_designatorCYLINDRICAL
features_providedELECTROSTATIC SENSITIVE
spring_free_length0.625 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
end_item_identificationB52
spring_free_outside_diameter0.406 INCHES NOMINAL IN
criticality_code_justificationCBBL
NSN4730-01-268-0201
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 401816-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 1
401816Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 401816-1?
401816-1 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 401816-1?
There is 1 known substitute for 401816-1: 401816. Substitute compatibility should be verified for your specific system.
What is the NSN for 401816-1?
401816-1 is cataloged in the U.S. Government catalog under NSN 4730-01-268-0201. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.