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LE273-0031 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

LE273-0031: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, seat_angle: 8.5 DEGREES FIRST END, reducer_type: CONCENTRIC, thread_class: 3B FIRST END, connection_type: UNTHREADED INTERNAL TUBE SECOND END, connection_style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-275-9454, 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
LE273-0031
NSN: 4730-00-275-9454
NIINs: 002759454, 010238354, 010281780, 010815732, 011792912, 011795403, 011795406
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
seat_angle8.5 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class3B FIRST END
connection_typeUNTHREADED INTERNAL TUBE SECOND END
connection_styleSWIVEL NUT INVERTED FLARE (TUBE) FIRST END
special_featuresWEAPONS SYSTEM ESSENTIAL
nominal_thread_size1.250 INCHES FIRST END IN
nominal_overall_length1.533 INCHES IN
end_item_identificationAIRCRAFT, F-15, F/A-18
thread_quantity_per_inch14 FIRST END
thread_series_designatorUNJS FIRST END
NSN4730-00-275-9454
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: LE273-0031 · 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
•
CONNECTION STYLE: GROOVED INSIDE (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.172 INCHES IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4965,6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGROOVED INSIDE (TUBE) SECOND END
CONNECTION STYLESWIVEL NUT INVERTED FLARE (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.172 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4965,6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES SECOND END IN
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
SEAT ANGLE8.5 DEGREES FIRST END
SUBSTITUTES & CROSS-REFERENCES 8
LE273-0031-0002Reference document
Same NSN cross-reference
Reference document — Secondary reference
7M525Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
L3273-0031-0002Reference document
Same NSN cross-reference
Reference document — Secondary reference
MR54048T-1008Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10108300Reference document
Same NSN cross-reference
Reference document — Informative reference only
MR54027T1008Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LE273-0031?
LE273-0031 is a REDUCER,TUBE.
What parts can replace LE273-0031?
There are 8 known substitutes for LE273-0031: LE273-0031-0002, 7M525, L3273-0031-0002 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LE273-0031?
LE273-0031 is cataloged in the U.S. Government catalog under NSN 4730-00-275-9454. This indicates validated use in U.S. government and defense supply chains.
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