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ST7M250T4 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ST7M250T4: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, seat_angle: 37.0 DEGREES, head_height: 0.162 INCHES NOMINAL IN, thread_class: 3A EXTERNAL A, overall_length: 0.437 INCHES NOMINAL IN, connection_style: FLARELESS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-571-9648, 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
ST7M250T4
NSN: 4730-00-571-9648
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
seat_angle37.0 DEGREES
head_height0.162 INCHES NOMINAL IN
thread_class3A EXTERNAL A
overall_length0.437 INCHES NOMINAL IN
connection_styleFLARELESS
style_designatorPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentLUBRICANT OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
nominal_thread_size0.438 INCHES EXTERNAL IN
thread_quantity_per_inch24 EXTERNAL
NSN4730-00-571-9648
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST7M250T4 · 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
•
HEAD HEIGHT: 0.162 INCHES NOMINAL IN
•
CONNECTION STYLE: FLARELESS
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4965, 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 0.438 INCHES EXTERNAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.162 INCHES NOMINAL IN
CONNECTION STYLEFLARELESS
STYLE DESIGNATORPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4965, 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
OVERALL LENGTH0.437 INCHES NOMINAL IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE0.438 INCHES EXTERNAL IN
SEAT ANGLE37.0 DEGREES
SURFACE TREATMENTLUBRICANT OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
1518-13275-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
AP390T04Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TF390T04Reference document
Same NSN cross-reference
Reference document — Secondary reference
R44119T04Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST7M250Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
AP390T4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST7M250T4?
ST7M250T4 is a PLUG,TUBE FITTING,THREADED.
What parts can replace ST7M250T4?
There are 7 known substitutes for ST7M250T4: 1518-13275-4, AP390T04, TF390T04 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST7M250T4?
ST7M250T4 is cataloged in the U.S. Government catalog under NSN 4730-00-571-9648. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.