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Technical Data Sheet

S20A1.0/5 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S20A1.0/5: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include mounting_position: HORIZONTAL OR VERTICAL, operating_pressure: 4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-237-8309, 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
S20A1.0/5
NSN: 4820-01-237-8309
FSC: 4820 — Valves, Nonpowered
CAGE: 27005 — BOSCH REXROTH CORPORATION DIV INDUSTRIAL HYDRAULICS (USA)
SPECIFICATIONS
mounting_positionHORIZONTAL OR VERTICAL
operating_pressure4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodAUTOMATIC
NSN4820-01-237-8309
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S20A1.0/5 · 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
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
OPERATING PRESSURE: 4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
MOUNTING POSITIONHORIZONTAL OR VERTICAL
OPERATING PRESSURE4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE OPERATION METHODAUTOMATIC
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 2
B-M 1200 PIECE 23-24Reference document
Same NSN cross-reference
Reference document — Secondary reference
2869 1INCHReference document
Same NSN cross-reference
Reference document — Design control — primary 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 S20A1.0/5?
S20A1.0/5 is a VALVE,CHECK.
What parts can replace S20A1.0/5?
There are 2 known substitutes for S20A1.0/5: B-M 1200 PIECE 23-24, 2869 1INCH. Substitute compatibility should be verified for your specific system.
What is the NSN for S20A1.0/5?
S20A1.0/5 is cataloged in the U.S. Government catalog under NSN 4820-01-237-8309. 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.