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81158S4105-1010597 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

81158S4105-1010597: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include body_style: STRAIGHT SHAPE, INTERNAL COUPLING, thread_class: 2B AND 2A A, overall_length: 1.281 INCHES MAXIMUM IN, overall_diameter: 0.688 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, threaded_device_type: COUPLING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-346-3425, 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
81158S4105-1010597
NSN: 4820-00-346-3425
FSC: 4820 — Valves, Nonpowered
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, INTERNAL COUPLING
thread_class2B AND 2A A
overall_length1.281 INCHES MAXIMUM IN
overall_diameter0.688 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
mating_end_quantity2
threaded_device_typeCOUPLING FACILITY
environmental_protectionCOLD RESISTANT AND HEAT RESISTANT AND VIBRATION RESISTANT AND SHOCK RESISTANT AND MOISTURE RESISTANT AND THERMAL SHOCK RESISTANT
NSN4820-00-346-3425
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81158S4105-1010597 · 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
SUBSTITUTES & CROSS-REFERENCES 2
3252074Reference document
Same NSN cross-reference
Reference document — Secondary reference
81158S4105-10105H75CDA61788Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 81158S4105-1010597?
81158S4105-1010597 is a VALVE,SAFETY RELIEF.
What parts can replace 81158S4105-1010597?
There are 2 known substitutes for 81158S4105-1010597: 3252074, 81158S4105-10105H75CDA61788. Substitute compatibility should be verified for your specific system.
What is the NSN for 81158S4105-1010597?
81158S4105-1010597 is cataloged in the U.S. Government catalog under NSN 4820-00-346-3425. 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.