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Technical Data Sheet
PartsTable / COMPONENT / 1376-18-515
1376-18-515 ✓ 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 INJECTOR ASSEMBLY,FUEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OR STEEL COMP 304 OVERALL, thread_class: 3A ALL ENDS A, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS, style_designator: FLARELESS W/ CENTER WRENCHING FACILITY, surface_treatment: PASSIVATE OVERALL, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-009-8259, 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
1376-18-515
NSN: 4730-00-009-8259
FSC: 4730
CAGE: A0199 — LEONARDO S.P.A. - ELECTRONICS DIVISION - DEFENCE BUSINESS AREA (ITA)
SPECIFICATIONS
materialSTEEL COMP 316 OR STEEL COMP 304 OVERALL
thread_class3A ALL ENDS A
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
style_designatorFLARELESS W/ CENTER WRENCHING FACILITY
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES ALL ENDS IN
maximum_operating_temp-65.0 FAHRENHEIT SECOND RESPONSE DEGF
nominal_overall_length1.062 INCHES IN
media_for_which_designedHYDRAULIC FLUID FIRST RESPONSE
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classification66,300 SERIES FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-009-8259
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1376-18-515 · 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
•
MAXIMUM OPERATING TEMP: 275.0 FAHRENHEIT FIRST RESPONSE DEGF
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
THREAD CLASS: 3A ALL ENDS A
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID FIRST RESPONSE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT FIRST RESPONSE DEGF
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
THREAD CLASS3A ALL ENDS A
SURFACE TREATMENTPASSIVATE OVERALL
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID FIRST RESPONSE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
NOMINAL OVERALL LENGTH1.062 INCHES IN
MATERIALSTEEL COMP 316 OR STEEL COMP 304 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AS21902Interchangeable
Same NIIN cross-reference
interchangeable
AS18280Interchangeable
Same NIIN cross-reference
interchangeable
4730PL0838813Interchangeable
Same NIIN cross-reference
interchangeable
MS21902K4Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS18280Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1376-18-515?
1376-18-515 is a INJECTOR ASSEMBLY,FUEL.
What parts can replace 1376-18-515?
There are 5 known substitutes for 1376-18-515: AS21902, AS18280, 4730PL0838813 and 2 more. Substitute compatibility should be verified for your specific system.
Is 1376-18-515 still available?
1376-18-515 is currently cancelled.
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Last verified: July 2026