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PartsTable / COMPONENT / MS21914-6R
MS21914-6R ✓ 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 347 OVERALL, thread_class: 3B INTERNAL, connection_style: PRESSURE SEAL FLARELESS, special_features: WITH CLEVIS PIN, style_designator: CAP, TUBE, FLARELESS, thread_direction: RIGHT-HAND INTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-050-9181, 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
MS21914-6R
NSN: 4730-01-050-9181
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
thread_class3B INTERNAL
connection_stylePRESSURE SEAL FLARELESS
special_featuresWITH CLEVIS PIN
style_designatorCAP, TUBE, FLARELESS
thread_directionRIGHT-HAND INTERNAL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.562 INCHES INTERNAL IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) INTERNAL
specification/standard_data81205-BACC14AD MANUFACTURERS STANDARD AND 14798-DB0C14AD MANUFACTURERS STANDARD
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
tube_outside_diameter_for_which_designed0.375 INCHES NOMINAL IN
NSN4730-01-050-9181
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21914-6R · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) INTERNAL
•
THREAD CLASS: 3B INTERNAL
•
STYLE DESIGNATOR: CAP, TUBE, FLARELESS
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 347 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESWITH CLEVIS PIN
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) INTERNAL
THREAD CLASS3B INTERNAL
STYLE DESIGNATORCAP, TUBE, FLARELESS
SURFACE TREATMENTPASSIVATE OVERALL
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 347 OVERALL
CONNECTION STYLEPRESSURE SEAL FLARELESS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MS21914-8DInterchangeable
interchangeable cross-reference
interchangeable
BACC14ADInterchangeable
interchangeable cross-reference
interchangeable
AS21914-16DInterchangeable
interchangeable cross-reference
interchangeable
FER22661-16Interchangeable
interchangeable cross-reference
interchangeable
AS21914Interchangeable
interchangeable cross-reference
interchangeable
AS21914-20WInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21914-6R?
MS21914-6R is a INJECTOR ASSEMBLY,FUEL.
What parts can replace MS21914-6R?
There are 15 known substitutes for MS21914-6R: MS21914-8D, BACC14AD, AS21914-16D and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21914-6R?
MS21914-6R is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-050-9181. 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