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CDA15689 20146Y91SS — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

CDA15689 20146Y91SS: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-159-5776, 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
CDA15689 20146Y91SS
NSN: 4820-01-159-5776
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
Part NumberCDA15689 20146Y91SS
NSN4820-01-159-5776
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: CDA15689 20146Y91SS · 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 4
CASZN15SGG-A003Reference document
Same NSN cross-reference
Reference document — Secondary reference
CDA15689Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
20146Y91SS CDA15689Reference document
Same NSN cross-reference
Reference document — Secondary reference
CPMTN15CGGReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CDA15689 20146Y91SS?
CDA15689 20146Y91SS is a VALVE,SAFETY RELIEF.
What parts can replace CDA15689 20146Y91SS?
There are 4 known substitutes for CDA15689 20146Y91SS: CASZN15SGG-A003, CDA15689, 20146Y91SS CDA15689 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CDA15689 20146Y91SS?
CDA15689 20146Y91SS is cataloged in the U.S. Government catalog under NSN 4820-01-159-5776. 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.