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Technical Data Sheet
PartsTable / COMPONENT / JCM-11256-005
JCM-11256-005 ✓ 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 SEAL NUT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: PIPE SEAL NUT, nut_height: 0.266 INCHES NOMINAL IN, thread_series: NPT, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-013-9963, 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
JCM-11256-005
NSN: 4730-01-013-9963
FSC: 4730
CAGE: 58905 — STRIKE WEAPONS AND UNMANNED AVIATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_stylePIPE SEAL NUT
nut_height0.266 INCHES NOMINAL IN
thread_seriesNPT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats1.3125 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
thread_quantity_per_inch14
NSN4730-01-013-9963
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: JCM-11256-005 · 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
•
NUT HEIGHT: 0.266 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.3125 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES: NPT
•
NUT STYLE: PIPE SEAL NUT
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD QUANTITY PER INCH: 14
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.266 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.3125 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIESNPT
NUT STYLEPIPE SEAL NUT
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD QUANTITY PER INCH14
MATERIALSTEEL COMP 303 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
C3059-4Interchangeable
interchangeable cross-reference
interchangeable
2600Z-1Interchangeable
interchangeable cross-reference
interchangeable
TRU-SEALInterchangeable
interchangeable cross-reference
interchangeable
TRU SEAL-1Interchangeable
interchangeable cross-reference
interchangeable
TRUSEAL1-11-1/2Interchangeable
interchangeable cross-reference
interchangeable
350-TSE01-125Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JCM-11256-005?
JCM-11256-005 is a SEAL NUT,PIPE.
What parts can replace JCM-11256-005?
There are 14 known substitutes for JCM-11256-005: C3059-4, 2600Z-1, TRU-SEAL and 11 more. Substitute compatibility should be verified for your specific system.
Is JCM-11256-005 still available?
JCM-11256-005 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