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521-093 — VALVE,REGULATING,TEMPERATURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

521-093: VALVE,REGULATING,TEMPERATURE.

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include special_features: STSTOR HAS 200VOLTS,3PHASE AND 400HZ OF ALTERNATING CURRENT.. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-806-9873, 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
521-093
NSN: 4820-00-806-9873
NIINs: 008069873, 013634810
FSC: 4820 — Valves, Nonpowered
CAGE: 81997 — EATON CORP CONTROLS DIV (USA)
SPECIFICATIONS
special_featuresSTSTOR HAS 200VOLTS,3PHASE AND 400HZ OF ALTERNATING CURRENT.
NSN4820-00-806-9873
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 521-093 · 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
•
FLOW CONTROL DEVICE: DISK, TOP GUIDED
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
OFFSET DISTANCE: 0.375 INCHES NOMINAL IN
•
BODY STYLE: STRAIGHT THRU W/OFFSET
•
FIRST END SEAT ANGLE IN DEG: 45.0
•
FIRST END THREAD CLASS: 3A A
•
FIRST END STYLE DESIGNATOR: FLARED
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK, TOP GUIDED
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
OFFSET DISTANCE0.375 INCHES NOMINAL IN
BODY STYLESTRAIGHT THRU W/OFFSET
FIRST END SEAT ANGLE IN DEG45.0
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORFLARED
BULB LENGTH4.500 INCHES NOMINAL IN
BULB DIAMETER0.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
521-60383Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 521-093?
521-093 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 521-093?
There is 1 known substitute for 521-093: 521-60383. Substitute compatibility should be verified for your specific system.
What is the NSN for 521-093?
521-093 is cataloged in the U.S. Government catalog under NSN 4820-00-806-9873. 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.