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6402630 IT-1 — 6402630 IT-1

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6402630 IT-1: 6402630 IT-1.

The 6402630 IT-1 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-640-9443, 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
6402630 IT-1
NSN: 4820-01-640-9443
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number6402630 IT-1
NSN4820-01-640-9443
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6402630 IT-1 · 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
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 9
6402620 ITEM 17L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
751-6402630 FIND NO 1L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
211068947Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
6402620 ITEM 17Reference document
Same NSN cross-reference
Reference document — Secondary reference
751-6402630 FIND NO 1Reference document
Same NSN cross-reference
Reference document — Secondary reference
6402610 ITEM 17L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6402630 IT-1?
6402630 IT-1 is a 6402630 IT-1.
What parts can replace 6402630 IT-1?
There are 9 known substitutes for 6402630 IT-1: 6402620 ITEM 17L1, 751-6402630 FIND NO 1L1, 211068947 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6402630 IT-1?
6402630 IT-1 is cataloged in the U.S. Government catalog under NSN 4820-01-640-9443. 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.