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MS51884-15 ✓ 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,FIXED,PAPER DIELECTRIC. Key specifications include material: IRON OR STEEL OVERALL, body_type: SOLID, head_type: SOLID, thread_class: 2A EXTERNAL A, drive_end_style: RAISED SQUARE, connection_style: PLAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-071-4075, 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
MS51884-15
NSN: 4730-01-071-4075
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialIRON OR STEEL OVERALL
body_typeSOLID
head_typeSOLID
thread_class2A EXTERNAL A
drive_end_styleRAISED SQUARE
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size1.500 INCHES EXTERNAL IN
thread_quantity_per_inch11-1/2 EXTERNAL
thread_series_designatorNPT EXTERNAL
nondefinitive_spec/std_data2 TYPE AND A STYLE
specification/standard_data96906-MS51884 GOVERNMENT STANDARD
NSN4730-01-071-4075
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51884-15 · 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 SERIES DESIGNATOR: NPT EXTERNAL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND A STYLE
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
SPECIFICATION/STANDARD DATA: 96906-MS51884 GOVERNMENT STANDARD
•
DRIVE END STYLE: RAISED SQUARE
•
THREAD CLASS: 2A EXTERNAL A
•
BODY TYPE: SOLID
•
HEAD TYPE: SOLID
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 SERIES DESIGNATORNPT EXTERNAL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND A STYLE
THREAD DIRECTIONRIGHT-HAND EXTERNAL
SPECIFICATION/STANDARD DATA96906-MS51884 GOVERNMENT STANDARD
DRIVE END STYLERAISED SQUARE
THREAD CLASS2A EXTERNAL A
BODY TYPESOLID
HEAD TYPESOLID
CONNECTION STYLEPLAIN
NOMINAL THREAD SIZE1.500 INCHES EXTERNAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
3207Interchangeable
interchangeable cross-reference
interchangeable
A-1450Interchangeable
interchangeable cross-reference
interchangeable
6818Interchangeable
interchangeable cross-reference
interchangeable
BP4297Interchangeable
interchangeable cross-reference
interchangeable
3207-00Interchangeable
interchangeable cross-reference
interchangeable
753 207Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51884-15?
MS51884-15 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace MS51884-15?
There are 29 known substitutes for MS51884-15: 3207, A-1450, 6818 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51884-15?
MS51884-15 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-071-4075. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026