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Technical Data Sheet
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B53617 — THERMOSTATIC ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B53617: THERMOSTATIC ASSEMBLY.

The THERMOSTATIC ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-00-406-6820, 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
B53617
NSN: 4820-00-406-6820
FSC: 4820 — Valves, Nonpowered
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS AND COPPER; CONSISTS OF CAPILLARY BULB 1; CAPILLARY TUBE 1; BELLOWS 1; NO. 3A T-2 THERMAL SYSTEM ONLY RANGE 120 TO 180 DEG F A
NSN4820-00-406-6820
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B53617 · 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: BRASS AND COPPER; CONSISTS OF CAPILLARY BULB 1; CAPILLARY TUBE 1; BELLOWS 1; NO. 3A T-2 THERMAL SYSTEM ONLY RANGE 120 TO 180 DEG F A
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS AND COPPER; CONSISTS OF CAPILLARY BULB 1; CAPILLARY TUBE 1; BELLOWS 1; NO. 3A T-2 THERMAL SYSTEM ONLY RANGE 120 TO 180 DEG F A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B53617?
B53617 is a THERMOSTATIC ASSEMBLY.
What is the NSN for B53617?
B53617 is cataloged in the U.S. Government catalog under NSN 4820-00-406-6820. This indicates validated use in U.S. government and defense supply chains.
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