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Technical Data Sheet
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18677 — VALVE,FLOW CONTROL

✓ Government record, cited
Trust · GATE VALVE
PRODUCT OVERVIEW

18677: VALVE,FLOW CONTROL.

Ultra small SD card reader, take it anywhere. USB 3.0: 2x faster than built-in card reader*. Separate Micro-SD slot, no adapter needed.

Super-fast reading of large photos and videos. SD, SDHC and SDXC compatible. * when connected to a USB 3.0 port.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-036-1850, 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
18677
NSN: 4820-00-036-1850
NIINs: 000361850, 014398795
FSC: 4820 — Valves, Nonpowered
CAGE: 38056 — ASHCROFT INC DBA HEISE (USA)
SPECIFICATIONS
end_item_identificationTYPE CXT-S TEMPERATURE REGULATOR; MARS CLASS AFS
NSN4820-00-036-1850
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18677 · Trust ⚠ 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 FEATURESNEXT HIGHER ASSEMBLY IS A RELIEF VALVE BOR SFTY 2.OO IPS 610 T 670 PSI FLANGED
SUBSTITUTES & CROSS-REFERENCES 3
VE4815Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
VEY815Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
16563Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18677?
18677 is a VALVE,FLOW CONTROL manufactured by Trust.
What parts can replace 18677?
There are 3 known substitutes for 18677: VE4815, VEY815, 16563. Substitute compatibility should be verified for your specific system.
What is the NSN for 18677?
18677 is cataloged in the U.S. Government catalog under NSN 4820-00-036-1850. 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.