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SEEPID ✓ 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 NUT,SLIP JOINT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: SLIP JOINT NUT, nut_height: 0.530 INCHES NOMINAL IN, thread_class: 2B, thread_series: NPSM, furnished_items: SLIP JOINT WASHER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-270-3886, 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
SEEPID
NSN: 4730-00-270-3886
FSC: 4730
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleSLIP JOINT NUT
nut_height0.530 INCHES NOMINAL IN
thread_class2B
thread_seriesNPSM
furnished_itemsSLIP JOINT WASHER
thread_directionRIGHT-HAND
surface_treatmentCHROMIUM OVERALL
nominal_thread_size1.500 INCHES IN
thread_quantity_per_inch11.500
nominal_pipe_size_designation1.500 INCHES IN
nominal_tube_outside_diameter1.500 INCHES IN
NSN4730-00-270-3886
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SEEPID · 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 CLASS: 2B
•
NUT HEIGHT: 0.530 INCHES NOMINAL IN
•
THREAD SERIES: NPSM
•
NOMINAL THREAD SIZE: 1.500 INCHES IN
•
NOMINAL TUBE OUTSIDE DIAMETER: 1.500 INCHES IN
•
THREAD QUANTITY PER INCH: 11.500
•
NOMINAL PIPE SIZE DESIGNATION: 1.500 INCHES IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NUT HEIGHT0.530 INCHES NOMINAL IN
THREAD SERIESNPSM
NOMINAL THREAD SIZE1.500 INCHES IN
NOMINAL TUBE OUTSIDE DIAMETER1.500 INCHES IN
THREAD QUANTITY PER INCH11.500
NOMINAL PIPE SIZE DESIGNATION1.500 INCHES IN
MATERIALCOPPER ALLOY OVERALL
NUT STYLESLIP JOINT NUT
FURNISHED ITEMSSLIP JOINT WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
FFB187TYPE751Interchangeable
interchangeable cross-reference
interchangeable
8633Interchangeable
interchangeable cross-reference
interchangeable
14139-14274Interchangeable
interchangeable cross-reference
interchangeable
320602Interchangeable
interchangeable cross-reference
interchangeable
6303Interchangeable
interchangeable cross-reference
interchangeable
STKX109Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SEEPID?
SEEPID is a NUT,SLIP JOINT.
What parts can replace SEEPID?
There are 18 known substitutes for SEEPID: FFB187TYPE751, 8633, 14139-14274 and 15 more. Substitute compatibility should be verified for your specific system.
Is SEEPID still available?
SEEPID 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