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37-1018 ✓ 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 RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 1.130 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, design_type: TUBULAR, thread_class: 3A LOCATION NOT OTHERWISE SPECIFIED A, thread_series: UNF LOCATION NOT OTHERWISE SPECIFIED, special_features: U/O B52G/H ACFTS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-409-6869, 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
37-1018
NSN: 4730-00-409-6869
FSC: 4730
CAGE: 82918 — THE BOEING COMPANY DIV LEGACY WICHITA (USA)
SPECIFICATIONS
length1.130 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
design_typeTUBULAR
thread_class3A LOCATION NOT OTHERWISE SPECIFIED A
thread_seriesUNF LOCATION NOT OTHERWISE SPECIFIED
special_featuresU/O B52G/H ACFTS
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
surface_treatmentPASSIVATE
thread_size_designator7/16-20 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-00-409-6869
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 37-1018 · 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
•
LENGTH: 1.130 INCHES NOMINAL IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
THREAD CLASS: 3A LOCATION NOT OTHERWISE SPECIFIED A
•
THREAD SIZE DESIGNATOR: 7/16-20 LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH1.130 INCHES NOMINAL IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS3A LOCATION NOT OTHERWISE SPECIFIED A
THREAD SIZE DESIGNATOR7/16-20 LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL CORROSION RESISTING
THREAD SERIESUNF LOCATION NOT OTHERWISE SPECIFIED
SPECIAL FEATURESU/O B52G/H ACFTS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
71236Interchangeable
interchangeable cross-reference
interchangeable
821453Interchangeable
interchangeable cross-reference
interchangeable
84912 PIECE 43Interchangeable
interchangeable cross-reference
interchangeable
MD091023Interchangeable
interchangeable cross-reference
interchangeable
VDLX0408000ACInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37-1018?
37-1018 is a RESTRICTOR,FLUID FLOW.
What parts can replace 37-1018?
There are 5 known substitutes for 37-1018: 71236, 821453, 84912 PIECE 43 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 37-1018?
37-1018 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-409-6869. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026