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260643 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

260643: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include material: ALUMINUM ALLOY 6061, overall_width: 0.7500 INCHES NOMINAL IN, overall_length: 2.7260 INCHES NOMINAL IN, surface_treatment: ANODIZE, mounting_hole_type: COUNTERSUNK, mounting_hole_diameter: 0.1540 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-009-5589, 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
260643
NSN: 4820-00-009-5589
NIINs: 000095589, 014134525
FSC: 4820 — Valves, Nonpowered
CAGE: 81400 — HASKEL INTERNATIONAL, LLC DBA HASKEL INTERNATIONAL, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
overall_width0.7500 INCHES NOMINAL IN
overall_length2.7260 INCHES NOMINAL IN
surface_treatmentANODIZE
mounting_hole_typeCOUNTERSUNK
mounting_hole_diameter0.1540 INCHES NOMINAL IN
mounting_hole_quantity2
end_item_identificationAIRCRAFT, HORNET F/A-18
material_document_and_classificationQQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625, TY 2, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE
NSN4820-00-009-5589
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 260643 · 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: DISK, CIRCULAR
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: MANUAL SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: PLAIN
•
TEMP RATING: 200.0 FAHRENHEIT NOMINAL DEGF
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK, CIRCULAR
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPEMANUAL SINGLE STAGE
FIRST END STYLE DESIGNATORPLAIN
TEMP RATING200.0 FAHRENHEIT NOMINAL DEGF
CRITICALITY CODE JUSTIFICATIONFEAT
END CONNECTION QUANTITY2
VALVE LOADING METHODSPRING
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
SUBSTITUTES & CROSS-REFERENCES 1
D10004-72Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 260643?
260643 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 260643?
There is 1 known substitute for 260643: D10004-72. Substitute compatibility should be verified for your specific system.
What is the NSN for 260643?
260643 is cataloged in the U.S. Government catalog under NSN 4820-00-009-5589. 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.