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Technical Data Sheet
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516-2146439 — RETAINER,SPRING

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

516-2146439: RETAINER,SPRING.

The RETAINER,SPRING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-209-3395, 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
516-2146439
NSN: 4820-01-209-3395
NIINs: 012093395, 012099248
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES QQ-S-766; 0.562 IN. THK; OVAL-SHAPED; CENTER HOLE 0.391 IN. DIA; 2 HOLES 0.193 IN. DIA,CENTER TO CENTER 1.000 IN. IN
NSN4820-01-209-3395
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 516-2146439 · 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
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: CRES QQ-S-766; 0.562 IN. THK; OVAL-SHAPED; CENTER HOLE 0.391 IN. DIA; 2 HOLES 0.193 IN. DIA,CENTER TO CENTER 1.000 IN. IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES QQ-S-766; 0.562 IN. THK; OVAL-SHAPED; CENTER HOLE 0.391 IN. DIA; 2 HOLES 0.193 IN. DIA,CENTER TO CENTER 1.000 IN. IN
SUBSTITUTES & CROSS-REFERENCES 2
76791-25X1Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
516-2146439 PIECE 25Same 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 516-2146439?
516-2146439 is a RETAINER,SPRING.
What parts can replace 516-2146439?
There are 2 known substitutes for 516-2146439: 76791-25X1, 516-2146439 PIECE 25. Substitute compatibility should be verified for your specific system.
What is the NSN for 516-2146439?
516-2146439 is cataloged in the U.S. Government catalog under NSN 4820-01-209-3395. This indicates validated use in U.S. government and defense supply chains.
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