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386258 — CYLINDER ASSEMBLY,ACTUATING,LINE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

386258: CYLINDER ASSEMBLY,ACTUATING,LINE.

CYLINDER ASSEMBLY,ACTUATING,LINE. Key specifications include extended_length: 215.9 MILLIMETERS NOMINAL MM, special_features: PETROLEUM BASE HYDRAULIC FLUIDS PER HCE-4 OR HC-79; OPERATING PRESSURE; 1250PSI, compressed_length: 45.6 MILLIMETERS NOMINAL MM, body_outside_diameter: 53.9 MILLIMETERS NOMINAL MM, end_item_identification: HYDRAULIC GROUP, mounting_type_and_location: SCREW CENTER SECTION. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-065-4751, 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
386258
NSN: 4820-01-065-4751
NIINs: 010654751, 015745418
FSC: 4820 — Valves, Nonpowered
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
extended_length215.9 MILLIMETERS NOMINAL MM
special_featuresPETROLEUM BASE HYDRAULIC FLUIDS PER HCE-4 OR HC-79; OPERATING PRESSURE; 1250PSI
compressed_length45.6 MILLIMETERS NOMINAL MM
body_outside_diameter53.9 MILLIMETERS NOMINAL MM
end_item_identificationHYDRAULIC GROUP
mounting_type_and_locationSCREW CENTER SECTION
NSN4820-01-065-4751
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 386258 · 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
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CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
SUBSTITUTES & CROSS-REFERENCES 1
3-8-625-8CPReference document
Same NSN cross-reference
Reference document — Secondary 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 386258?
386258 is a CYLINDER ASSEMBLY,ACTUATING,LINE.
What parts can replace 386258?
There is 1 known substitute for 386258: 3-8-625-8CP. Substitute compatibility should be verified for your specific system.
What is the NSN for 386258?
386258 is cataloged in the U.S. Government catalog under NSN 4820-01-065-4751. 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.