PartsTable
Technical Data Sheet
Download PDF

18-045-109 — VALVE,ROTALOCK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

18-045-109: VALVE,ROTALOCK.

The VALVE,ROTALOCK is a the manufacturer industrial component. Key specifications include width: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, length: 0.788 INCHES NOMINAL IN, hole_diameter: 0.119 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN, loop_opening_width: 0.125 INCHES NOMINAL IN, material_thickness: 0.015 INCHES NOMINAL IN, distance_from_end_to_nearest_bend: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-572-3418, 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
18-045-109
NSN: 4820-01-572-3418
FSC: 4820 — Valves, Nonpowered
CAGE: 38450 — ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL (USA)
SPECIFICATIONS
width0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
length0.788 INCHES NOMINAL IN
hole_diameter0.119 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
loop_opening_width0.125 INCHES NOMINAL IN
material_thickness0.015 INCHES NOMINAL IN
distance_from_end_to_nearest_bend0.375 INCHES NOMINAL IN
NSN4820-01-572-3418
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18-045-109 · 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
SUBSTITUTES & CROSS-REFERENCES 1
1620C0700P ITEM NO 2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 18-045-109?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 18-045-109?
18-045-109 is a VALVE,ROTALOCK.
What parts can replace 18-045-109?
There is 1 known substitute for 18-045-109: 1620C0700P ITEM NO 2. Substitute compatibility should be verified for your specific system.
What is the NSN for 18-045-109?
18-045-109 is cataloged in the U.S. Government catalog under NSN 4820-01-572-3418. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 18-045-109

✓ 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.