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6406840 — CONNECTING LINK,RIGID

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6406840: CONNECTING LINK,RIGID.

The CONNECTING LINK,RIGID is a the manufacturer industrial component. Key specifications include material: STEEL, body_width: 0.750 INCHES NOMINAL IN, link_style: STRAIGHT, body_thickness: 0.250 INCHES NOMINAL IN, overall_length: 1.750 INCHES NOMINAL IN, special_features: CHROMIUM-STEEL MATERIAL. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-442-3337, 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
6406840
NSN: 4810-01-442-3337
NIINs: 014423337, 014500187
FSC: 4810 — Valves, Powered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
body_width0.750 INCHES NOMINAL IN
link_styleSTRAIGHT
body_thickness0.250 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
special_featuresCHROMIUM-STEEL MATERIAL
body_constructionSOLID
end_item_identificationSEAWOLF CLASS SSN
NSN4810-01-442-3337
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6406840 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESCHROMIUM-STEEL MATERIAL
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
SUBSTITUTES & CROSS-REFERENCES 1
211044763Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6406840?
6406840 is a CONNECTING LINK,RIGID.
What parts can replace 6406840?
There is 1 known substitute for 6406840: 211044763. Substitute compatibility should be verified for your specific system.
What is the NSN for 6406840?
6406840 is cataloged in the U.S. Government catalog under NSN 4810-01-442-3337. 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.