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CH557 — CAPACITOR,FIXED,PAPER DIELECTRIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

CH557: CAPACITOR,FIXED,PAPER DIELECTRIC.

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, bend_radius: 3.000 INCHES NOMINAL IN, wall_thickness: 0.188 INCHES MINIMUM IN, working_length: 8.690 INCHES NOMINAL IN, inside_diameter: 2.000 INCHES NOMINAL IN, offset_distance: 4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-035-8919, 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
CH557
NSN: 4720-00-035-8919
FSC: 4720 — Hose and Flexible Tubing
CAGE: 24161 — GATES CORPORATION (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
bend_radius3.000 INCHES NOMINAL IN
wall_thickness0.188 INCHES MINIMUM IN
working_length8.690 INCHES NOMINAL IN
inside_diameter2.000 INCHES NOMINAL IN
offset_distance4.500 INCHES NOMINAL IN
style_designatorTWO BEND
second_arm_length2.460 INCHES NOMINAL IN
center_to_center_distance7.690 INCHES NOMINAL IN
NSN4720-00-035-8919
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: CH557 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OFFSET DISTANCE: 4.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TWO BEND
•
WALL THICKNESS: 0.188 INCHES MINIMUM IN
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
•
BEND RADIUS: 3.000 INCHES NOMINAL IN
•
SECOND ARM LENGTH: 2.460 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
OFFSET DISTANCE4.500 INCHES NOMINAL IN
STYLE DESIGNATORTWO BEND
WALL THICKNESS0.188 INCHES MINIMUM IN
INSIDE DIAMETER2.000 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
MATERIALRUBBER CHLOROPRENE CLASS CR COVER
BEND RADIUS3.000 INCHES NOMINAL IN
SECOND ARM LENGTH2.460 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE7.690 INCHES NOMINAL IN
WORKING LENGTH8.690 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
7423Reference document
Same NSN cross-reference
Reference document — Secondary reference
304596R1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CH557?
CH557 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace CH557?
There are 2 known substitutes for CH557: 7423, 304596R1. Substitute compatibility should be verified for your specific system.
What is the NSN for CH557?
CH557 is cataloged in the U.S. Government catalog under NSN 4720-00-035-8919. 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.