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PartsTable / COMPONENT / MS51953-264
MS51953-264 ✓ 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

The DISK,CLUTCH,NONVEHICULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: CLOSE, surface_treatment: ZINC OVERALL, nominal_thread_size: 4.000 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-196-1476, 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
MS51953-264
NSN: 4730-00-196-1476
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorCLOSE
surface_treatmentZINC OVERALL
nominal_thread_size4.000 INCHES ALL ENDS IN
nominal_overall_length2.875 INCHES IN
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data1 TYPE
NSN4730-00-196-1476
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-264 · 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
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
SURFACE TREATMENT: ZINC OVERALL
•
NOMINAL OVERALL LENGTH: 2.875 INCHES IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
NOMINAL THREAD SIZE: 4.000 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA1 TYPE
SURFACE TREATMENTZINC OVERALL
NOMINAL OVERALL LENGTH2.875 INCHES IN
THREAD SERIES DESIGNATORNPT ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
NOMINAL THREAD SIZE4.000 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE
STYLE DESIGNATORCLOSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
3240Interchangeable
interchangeable cross-reference
interchangeable
A733Interchangeable
interchangeable cross-reference
interchangeable
119920Interchangeable
interchangeable cross-reference
interchangeable
WWN351Interchangeable
interchangeable cross-reference
interchangeable
BM11352-99Interchangeable
interchangeable cross-reference
interchangeable
45-5750-030-040Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51953-264?
MS51953-264 is a DISK,CLUTCH,NONVEHICULAR.
What parts can replace MS51953-264?
There are 21 known substitutes for MS51953-264: 3240, A733, 119920 and 18 more. Substitute compatibility should be verified for your specific system.
Is MS51953-264 still available?
MS51953-264 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: July 2026