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Technical Data Sheet

MS51953-174B — Technical Data Sheet

✓ 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 NIPPLE,PIPE 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: LONG, surface_treatment: OXIDE OVERALL, nominal_thread_size: 1.500 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-197-6649, 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
MS51953-174B
NSN: 4730-00-197-6649
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_designatorLONG
surface_treatmentOXIDE OVERALL
nominal_thread_size1.500 INCHES ALL ENDS IN
nominal_overall_length4.000 INCHES IN
thread_series_designatorNPT ALL ENDS
specification/standard_data81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
material_document_and_classificationASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-197-6649
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-174B · 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
•
SURFACE TREATMENT: OXIDE OVERALL
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: STEEL OVERALL
•
SPECIFICATION/STANDARD DATA: 81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: LONG
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTOXIDE OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALSTEEL OVERALL
SPECIFICATION/STANDARD DATA81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
SURFACE TREATMENTOXIDE OVERALL
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORLONG
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
124556InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5112InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
42-5416-500-390InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1704InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SCD33436ITEM1AND10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3070702-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51953-174B?
MS51953-174B is a NIPPLE,PIPE.
What parts can replace MS51953-174B?
There are 23 known substitutes for MS51953-174B: 124556, 5112, 42-5416-500-390 and 20 more. Substitute compatibility should be verified for your specific system.
Is MS51953-174B still available?
MS51953-174B is currently cancelled.
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