PartsTable
Technical Data Sheet
ST7M298 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include angle: 90.0 DEGREES, height: 1.062 INCHES NOMINAL IN, material: STEEL OVERALL, special_features: 0.312 IN. THD LG,SURFACE LOCATED BALL CHECK VALVE; WEAPON SYSTEM ESSENTIAL; END ITEM:THE F-15 AND F-4 AIRCRAFT IN, style_designator: ANGLE, surface_treatment: ZINC OVERALL.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-188-6320, 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
ST7M298
NSN: 4730-00-188-6320
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
angle90.0 DEGREES
height1.062 INCHES NOMINAL IN
materialSTEEL OVERALL
special_features0.312 IN. THD LG,SURFACE LOCATED BALL CHECK VALVE; WEAPON SYSTEM ESSENTIAL; END ITEM:THE F-15 AND F-4 AIRCRAFT IN
style_designatorANGLE
surface_treatmentZINC OVERALL
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch27
assembly_clearance_radius1.000 INCHES NOMINAL IN
criticality_code_justificationFEAT
screw_thread_series_designatorNPTF
NSN4730-00-188-6320
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST7M298 · 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
HEIGHT: 1.500 INCHES NOMINAL IN
SCREW THREAD SERIES DESIGNATOR: NPTF
ASSEMBLY CLEARANCE RADIUS: 0.844 INCHES NOMINAL IN
THREAD QUANTITY PER INCH: 27
CRITICALITY CODE JUSTIFICATION: FEAT
NOMINAL THREAD SIZE: 0.125 INCHES IN
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT1.500 INCHES NOMINAL IN
SPECIAL FEATURESSURFACELOCATED BALL CHECK VALVE; WEAPON SYSTEM ESSENTIAL; END ITEM: F-15 EAGLE AIRCRAFT
SCREW THREAD SERIES DESIGNATORNPTF
ASSEMBLY CLEARANCE RADIUS0.844 INCHES NOMINAL IN
THREAD QUANTITY PER INCH27
CRITICALITY CODE JUSTIFICATIONFEAT
NOMINAL THREAD SIZE0.125 INCHES IN
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
ANGLE45.0 DEGREES
SURFACE TREATMENTNICKEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ST7M298-1Interchangeable
interchangeable cross-reference
interchangeable
317-6709-805881RInterchangeable
interchangeable cross-reference
interchangeable
M336Interchangeable
interchangeable cross-reference
interchangeable
P12807Interchangeable
interchangeable cross-reference
interchangeable
A684Interchangeable
interchangeable cross-reference
interchangeable
5B156Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST7M298?
ST7M298 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace ST7M298?
There are 16 known substitutes for ST7M298: ST7M298-1, 317-6709-805881R, M336 and 13 more. Substitute compatibility should be verified for your specific system.
Is ST7M298 still available?
ST7M298 is currently cancelled.
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