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Technical Data Sheet
PartsTable / COMPONENT / M959B
M959B ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: IRON MALLEABLE OVERALL, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: PLAIN W/ FLATED SIDES, surface_treatment: OXIDE OVERALL, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.250 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-053-0511, 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
M959B
NSN: 4730-00-053-0511
FSC: 4730
CAGE: 11568 — GARDNER DENVER INC. (USA)
SPECIFICATIONS
materialIRON MALLEABLE OVERALL
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorPLAIN W/ FLATED SIDES
surface_treatmentOXIDE OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES ALL ENDS IN
nominal_overall_length1.060 INCHES IN
media_for_which_designedFLUID SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data2 TABLE
specification/standard_data80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS39233 GOVERNMENT STANDARD
NSN4730-00-053-0511
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M959B · 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
•
MEDIA FOR WHICH DESIGNED: FLUID SINGLE RESPONSE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: IRON MALLEABLE OVERALL
•
STYLE DESIGNATOR: PLAIN W/ FLATED SIDES
•
NOMINAL OVERALL LENGTH: 1.060 INCHES IN
•
SURFACE TREATMENT: OXIDE OVERALL
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NONDEFINITIVE SPEC/STD DATA: 2 TABLE
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALIRON MALLEABLE OVERALL
STYLE DESIGNATORPLAIN W/ FLATED SIDES
NOMINAL OVERALL LENGTH1.060 INCHES IN
SURFACE TREATMENTOXIDE OVERALL
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NONDEFINITIVE SPEC/STD DATA2 TABLE
SPECIFICATION/STANDARD DATA80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS39233 GOVERNMENT STANDARD
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
187395Interchangeable
interchangeable cross-reference
interchangeable
X4CPInterchangeable
Same NIIN cross-reference
interchangeable
ASME B16.3Interchangeable
Same NIIN cross-reference
interchangeable
CPEX5Interchangeable
Same NIIN cross-reference
interchangeable
B16.3Interchangeable
Same NIIN cross-reference
interchangeable
MS39233-2BInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M959B?
M959B is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace M959B?
There are 6 known substitutes for M959B: 187395, X4CP, ASME B16.3 and 3 more. Substitute compatibility should be verified for your specific system.
Is M959B still available?
M959B 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