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2-52918-1 — HOLDER,SEAT SPRING

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2-52918-1: HOLDER,SEAT SPRING.

The HOLDER,SEAT SPRING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, connection_type: UNTHREADED EXTERNAL HOSE FIRST END, style_designator: STRAIGHT THRU, flow_control_device: POPPET, valve_operation_method: MANUAL, nominal_outside_diameter_hose_accommodated: 1.250 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-773-7224, 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
2-52918-1
NSN: 4820-00-773-7224
NIINs: 007737224, 013870028
FSC: 4820 — Valves, Nonpowered
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
connection_typeUNTHREADED EXTERNAL HOSE FIRST END
style_designatorSTRAIGHT THRU
flow_control_devicePOPPET
valve_operation_methodMANUAL
nominal_outside_diameter_hose_accommodated1.250 INCHES FIRST END IN
NSN4820-00-773-7224
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2-52918-1 · 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: POPPET
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 1.250 INCHES FIRST END IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED1.250 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST END
STYLE DESIGNATORSTRAIGHT THRU
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY BODY
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-52918-1?
2-52918-1 is a HOLDER,SEAT SPRING.
What is the NSN for 2-52918-1?
2-52918-1 is cataloged in the U.S. Government catalog under NSN 4820-00-773-7224. 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.