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680543 — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

680543: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include body_style: CYLINDRICAL SERVO MOUNTED, body_length: 1.140 INCHES MAXIMUM IN, shaft_style: ROUND, pilot_length: 0.0620 INCHES NOMINAL IN, shaft_length: 0.563 INCHES NOMINAL IN, actuator_type: SINGLE SHAFT. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-604-7889, 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
680543
NSN: 4820-00-604-7889
FSC: 4820 — Valves, Nonpowered
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
body_styleCYLINDRICAL SERVO MOUNTED
body_length1.140 INCHES MAXIMUM IN
shaft_styleROUND
pilot_length0.0620 INCHES NOMINAL IN
shaft_length0.563 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
body_diameter0.875 INCHES MAXIMUM IN
pilot_diameter0.7500 INCHES NOMINAL IN
shaft_diameter0.1245 INCHES MINIMUM AND 0.1248 INCHES MAXIMUM IN
shaft_end_play0.005 INCHES IN
undercut_width0.0570 INCHES MINIMUM IN
mounting_methodCLAMP RING(S)
NSN4820-00-604-7889
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 680543 · 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 8
1885M5Reference document
Same NSN cross-reference
Reference document — Secondary reference
SA1591-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
12-00651Reference document
Same NSN cross-reference
Reference document — Secondary reference
7533844Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
25-F-2226Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
232722R91Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 680543?
680543 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace 680543?
There are 8 known substitutes for 680543: 1885M5, SA1591-10, 12-00651 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 680543?
680543 is cataloged in the U.S. Government catalog under NSN 4820-00-604-7889. 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.