PartsTable
Technical Data Sheet
ST9M540-120 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.563 INCHES NOMINAL IN, inside_diameter: 3.500 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN, special_features: FURNISH WITH SLOTTED HEXAGON HEAD SCREW, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-279-0072, 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
ST9M540-120
NSN: 4730-00-279-0072
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.563 INCHES NOMINAL IN
inside_diameter3.500 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
special_featuresFURNISH WITH SLOTTED HEXAGON HEAD SCREW
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
nondefinitive_spec/std_dataF TYPE
specification/standard_data81348-WW-C-440 GOVERNMENT SPECIFICATION
NSN4730-00-279-0072
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST9M540-120 · 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
INSIDE DIAMETER: 3.500 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
MATERIAL: STEEL OVERALL
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
NONDEFINITIVE SPEC/STD DATA: F TYPE
STYLE DESIGNATOR: WIRE
SPECIFICATION/STANDARD DATA: 81348-WW-C-440 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER3.500 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SPECIAL FEATURESFURNISH WITH SLOTTED HEXAGON HEAD SCREW
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
NONDEFINITIVE SPEC/STD DATAF TYPE
OVERALL WIDTH0.563 INCHES NOMINAL IN
STYLE DESIGNATORWIRE
SPECIFICATION/STANDARD DATA81348-WW-C-440 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
A-A-59640Interchangeable
interchangeable cross-reference
interchangeable
01-49-01Interchangeable
interchangeable cross-reference
interchangeable
5201Interchangeable
interchangeable cross-reference
interchangeable
105477Interchangeable
interchangeable cross-reference
interchangeable
147263Interchangeable
interchangeable cross-reference
interchangeable
9252Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy ST9M540-120?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is ST9M540-120?
ST9M540-120 is a CLAMP,HOSE.
What parts can replace ST9M540-120?
There are 22 known substitutes for ST9M540-120: A-A-59640, 01-49-01, 5201 and 19 more. Substitute compatibility should be verified for your specific system.
Is ST9M540-120 still available?
ST9M540-120 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — ST9M540-120