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Technical Data Sheet
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3759251 — Technical Data Sheet

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— · 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 PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_type: SOLID, drive_end_style: HEXAGON, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL, nominal_thread_size: 0.125 INCHES EXTERNAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-023-0164, 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
3759251
NSN: 4730-01-023-0164
FSC: 4730
CAGE: 99166 — SUNDSTRAND CORP SUNDSTRAND HYDRAULICS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
drive_end_styleHEXAGON
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size0.125 INCHES EXTERNAL IN
thread_series_designatorNPTF EXTERNAL
nominal_pipe_size_for_which_designed0.125 INCHES IN
NSN4730-01-023-0164
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3759251 · 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
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
DRIVE END STYLE: HEXAGON
•
NOMINAL THREAD SIZE: 0.125 INCHES EXTERNAL IN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.125 INCHES IN
•
THREAD SERIES DESIGNATOR: NPTF EXTERNAL
•
MATERIAL: STEEL OVERALL
•
BODY TYPE: SOLID
•
CONNECTION STYLE: PLAIN
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND EXTERNAL
DRIVE END STYLEHEXAGON
NOMINAL THREAD SIZE0.125 INCHES EXTERNAL IN
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.125 INCHES IN
THREAD SERIES DESIGNATORNPTF EXTERNAL
MATERIALSTEEL OVERALL
BODY TYPESOLID
CONNECTION STYLEPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
131202InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
127297AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
127297InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
135721InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1815041InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S150-10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3759251?
3759251 is a PLUG,PIPE.
What parts can replace 3759251?
There are 7 known substitutes for 3759251: 131202, 127297A, 127297 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3759251?
3759251 is cataloged in the Federal Logistics Information System under NSN 4730-01-023-0164. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026