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20610265 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20610265: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, style_designator: ANGLE, flow_control_device: PISTON, end_item_identification: FIRE PROTECTION SYSTEM, P/N 10540059 ONBOARD USCG 75 FT WLIC CLASS VESSELS FT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-555-3474, 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
20610265
NSN: 4820-01-555-3474
FSC: 4820 — Valves, Nonpowered
CAGE: 1CSX7 — CHEMETRON FIRE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
style_designatorANGLE
flow_control_devicePISTON
end_item_identificationFIRE PROTECTION SYSTEM, P/N 10540059 ONBOARD USCG 75 FT WLIC CLASS VESSELS FT
NSN4820-01-555-3474
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20610265 · 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: PISTON
•
STYLE DESIGNATOR: ANGLE
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPISTON
STYLE DESIGNATORANGLE
SPECIAL FEATURESTHE NITROGEN CHECK VALVE IS INSTALLED AT THE INLET PORT TO THE WATER TANK. THE BODY MATERIAL IS BRASS. THE PLUNGER/PISTON ON THE SIDE OF THE CHECK VALVE WILL PROTRUDE WHEN THE VALVE IS OPEN AND WILL BE RECESSED WHEN THE VALVE IS CLOSED.
END ITEM IDENTIFICATIONFIRE PROTECTION SYSTEM, P/N 10540059 ONBOARD USCG 75 FT WLIC CLASS VESSELS FT
MATERIALCOPPER ALLOY BODY
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

No substitute or cross-reference records for this part.

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 20610265?
20610265 is a VALVE,CHECK.
What is the NSN for 20610265?
20610265 is cataloged in the U.S. Government catalog under NSN 4820-01-555-3474. 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.