PartsTable
Technical Data Sheet
MC2951 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 42.0 DEGREES FIRST END, reducer_type: CONCENTRIC, thread_class: 2A FIRST END A, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-317-3877, 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
MC2951
NSN: 4730-00-317-3877
FSC: 4730
CAGE: 66614 — TRW INC REPLACEMENT PARTS DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle42.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class2A FIRST END A
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) SECOND END
nominal_thread_size0.438 INCHES SECOND END IN
nominal_overall_length1.000 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_quantity_per_inch20 FIRST END
thread_series_designatorUNS ALL ENDS
nominal_outside_diameter_tube_accommodated0.312 INCHES ALL ENDS IN
NSN4730-00-317-3877
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MC2951 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD QUANTITY PER INCH: 24 SECOND END
NOMINAL THREAD SIZE: 0.438 INCHES SECOND END IN
MATERIAL: COPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.312 INCHES ALL ENDS IN
THREAD CLASS: 2A FIRST END A
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 (FLIS)
THREAD QUANTITY PER INCH24 SECOND END
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
MATERIALCOPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
THREAD QUANTITY PER INCH20 FIRST END
THREAD CLASS2A FIRST END A
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2951Interchangeable
interchangeable cross-reference
interchangeable
711498-36Interchangeable
interchangeable cross-reference
interchangeable
442-0043-004Interchangeable
interchangeable cross-reference
interchangeable
AF2241Interchangeable
interchangeable cross-reference
interchangeable
A483CInterchangeable
interchangeable cross-reference
interchangeable
1024541AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MC2951?
MC2951 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace MC2951?
There are 24 known substitutes for MC2951: 2951, 711498-36, 442-0043-004 and 21 more. Substitute compatibility should be verified for your specific system.
Is MC2951 still available?
MC2951 is currently cancelled.
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