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SAE J30R3 3/8IN — Technical Data Sheet

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— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,MICA DIELECTR. Key specifications include shape: SPHERICAL, weight: 30.0 GRAMS G, material: RUBBER SYNTHETIC TUBE, temp_rating: -29.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF, taper_length: 0.296 INCHES NOMINAL IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System under NSN 4720-00-961-7926, 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
SAE J30R3 3/8IN
NSN: 4720-00-961-7926
FSC: 4720
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
shapeSPHERICAL
weight30.0 GRAMS G
materialRUBBER SYNTHETIC TUBE
temp_rating-29.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF
taper_length0.296 INCHES NOMINAL IN
thread_class2A A
usage_designUSED IN DETERMINING WIND DIRECTION AND SPEED ALOFT
thread_length0.1015 INCHES IN
exterior_colorBLACK
overall_length0.750 INCHES NOMINAL IN
taper_locationEXTERNAL
vacuum_in_torr50.8
NSN4720-00-961-7926
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: SAE J30R3 3/8IN · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
1595500InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
NW31841InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
27003InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C406InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-A-52424InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
J30InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SAE J30R3 3/8IN?
SAE J30R3 3/8IN is a CAPACITOR,VARIABLE,MICA DIELECTR.
What parts can replace SAE J30R3 3/8IN?
There are 33 known substitutes for SAE J30R3 3/8IN: 1595500, NW31841, 27003 and 30 more. Substitute compatibility should be verified for your specific system.
Is SAE J30R3 3/8IN still available?
SAE J30R3 3/8IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026