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PartsTable / COMPONENT / MS51953-87
MS51953-87 ✓ 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: FLARED W/ OUT WRENCHING FACILITY, surface_treatment: ZINC AND DICHROMATE OUTSIDE, nominal_thread_size: 0.500 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-921-3614, 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
MS51953-87
NSN: 4730-00-921-3614
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_designatorFLARED W/ OUT WRENCHING FACILITY
surface_treatmentZINC AND DICHROMATE OUTSIDE
nominal_thread_size0.500 INCHES ALL ENDS IN
nominal_overall_length7.000 INCHES IN
thread_series_designatorNPTF ALL ENDS
specification/standard_data81346-ASTMA733 GOVERNMENT SPECIFICATION AND 96906-MS51953-87 GOVERNMENT STANDARD
NSN4730-00-921-3614
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-87 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ OUT WRENCHING FACILITY
•
SURFACE TREATMENT: ZINC AND DICHROMATE INSIDE
•
NOMINAL OVERALL LENGTH: 7.000 INCHES IN
•
THREAD SERIES DESIGNATOR: NPTF ALL ENDS
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
STYLE DESIGNATORFLARED W/ OUT WRENCHING FACILITY
SURFACE TREATMENTZINC AND DICHROMATE INSIDE
NOMINAL OVERALL LENGTH7.000 INCHES IN
THREAD SERIES DESIGNATORNPTF ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC AND DICHROMATE OUTSIDE
SPECIFICATION/STANDARD DATA81346-ASTMA733 GOVERNMENT SPECIFICATION AND 96906-MS51953-87 GOVERNMENT STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
UL62Interchangeable
interchangeable cross-reference
interchangeable
802083-016Interchangeable
interchangeable cross-reference
interchangeable
6145002840079Interchangeable
interchangeable cross-reference
interchangeable
19208Interchangeable
interchangeable cross-reference
interchangeable
M3432-03HOF(3/16)0435Interchangeable
interchangeable cross-reference
interchangeable
CO-03HF93/160043Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51953-87?
MS51953-87 is a NIPPLE,PIPE.
What parts can replace MS51953-87?
There are 16 known substitutes for MS51953-87: UL62, 802083-016, 6145002840079 and 13 more. Substitute compatibility should be verified for your specific system.
Is MS51953-87 still available?
MS51953-87 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