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U80038953 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

U80038953: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: PILOT RATIO 1:8:1, BUNA-N SEALS, operating_pressure: 350.0 BAR MAXIMUM SINGLE RESPONSE, disk_loading_method: SPRING, valve_operation_method: AUTOMATIC, opening_pressure_setting: 1.0 BAR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-595-0313, 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
U80038953
NSN: 4820-01-595-0313
FSC: 4820 — Valves, Nonpowered
CAGE: K0107 — MACTAGGART SCOTT & CO LTD (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresPILOT RATIO 1:8:1, BUNA-N SEALS
operating_pressure350.0 BAR MAXIMUM SINGLE RESPONSE
disk_loading_methodSPRING
valve_operation_methodAUTOMATIC
opening_pressure_setting1.0 BAR
part_name_assigned_by_controlling_agencyPILOT TO CLOSE CHECK VALVE
NSN4820-01-595-0313
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: U80038953 · 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
•
CONNECTION TYPE: THREADED CARTRIDGE FIRST END
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
OPERATING PRESSURE: 350.0 BAR MAXIMUM SINGLE RESPONSE
•
DISK LOADING METHOD: SPRING
•
MATERIAL: STEEL OVERALL
•
OPENING PRESSURE SETTING: 1.0 BAR
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED CARTRIDGE FIRST END
STYLE DESIGNATORSCREW-IN CARTRIDGE
OPERATING PRESSURE350.0 BAR MAXIMUM SINGLE RESPONSE
DISK LOADING METHODSPRING
SPECIAL FEATURESPILOT RATIO 1:8:1, BUNA-N SEALS
PART NAME ASSIGNED BY CONTROLLING AGENCYPILOT TO CLOSE CHECK VALVE
MATERIALSTEEL OVERALL
OPENING PRESSURE SETTING1.0 BAR
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
COJA-XBNSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
40085003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is U80038953?
U80038953 is a VALVE,CHECK.
What parts can replace U80038953?
There are 2 known substitutes for U80038953: COJA-XBN, 40085003. Substitute compatibility should be verified for your specific system.
What is the NSN for U80038953?
U80038953 is cataloged in the U.S. Government catalog under NSN 4820-01-595-0313. 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.