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Technical Data Sheet
PartsTable / COMPONENT / MS51953-29B
MS51953-29B ✓ 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 CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 0.688 INCHES MAXIMUM FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, nominal_length: 1.500 INCHES ALL ENDS IN, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-188-1854, 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
MS51953-29B
NSN: 4730-00-188-1854
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
leg_length0.688 INCHES MAXIMUM FIRST END IN
seat_angle37.0 DEGREES FIRST END
nominal_length1.500 INCHES ALL ENDS IN
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresEXTRA STRONG BLACK COATED STEEL
style_designatorSHORT
surface_treatmentZINC OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.250 INCHES ALL ENDS IN
fsc_application_dataAS MODIFIED BY SURFACE TREATMENT
NSN4730-00-188-1854
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-29B · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
3-16-1Interchangeable
interchangeable cross-reference
interchangeable
A3-16RD TINNEDInterchangeable
interchangeable cross-reference
interchangeable
MS35446-1Interchangeable
interchangeable cross-reference
interchangeable
6715Interchangeable
interchangeable cross-reference
interchangeable
13345Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51953-29B?
MS51953-29B is a CIRCUIT CARD ASSEMBLY.
What parts can replace MS51953-29B?
There are 28 known substitutes for MS51953-29B: 3-16-1, A3-16RD TINNED, MS35446-1 and 25 more. Substitute compatibility should be verified for your specific system.
Is MS51953-29B still available?
MS51953-29B 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