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538-0520-00 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

538-0520-00: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include end_item_identification: FIREFIGHTING TRUCK MODEL NO. 2640-84.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-446-2247, 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
538-0520-00
NSN: 4820-01-446-2247
FSC: 4820 — Valves, Nonpowered
CAGE: 26840 — HALE PRODUCTS, INC. (USA)
SPECIFICATIONS
end_item_identificationFIREFIGHTING TRUCK MODEL NO. 2640-84
NSN4820-01-446-2247
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 538-0520-00 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONFIREFIGHTING TRUCK MODEL NO. 2640-84
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 1
538-0520-0Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 538-0520-00?
538-0520-00 is a VALVE,CHECK.
What parts can replace 538-0520-00?
There is 1 known substitute for 538-0520-00: 538-0520-0. Substitute compatibility should be verified for your specific system.
What is the NSN for 538-0520-00?
538-0520-00 is cataloged in the U.S. Government catalog under NSN 4820-01-446-2247. This indicates validated use in U.S. government and defense supply chains.
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