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Technical Data Sheet
PartsTable / COMPONENT / MS21922-3C
MS21922-3C ✓ 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 SLEEVE,CLINCH,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630, flange_width: 0.060 INCHES NOMINAL IN, overall_length: 0.450 INCHES NOMINAL IN, style_designator: FLARELESS, seat_angle_in_deg: 12.0, surface_treatment: PASSIVATE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-729-7035, 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
MS21922-3C
NSN: 4730-00-729-7035
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 630
flange_width0.060 INCHES NOMINAL IN
overall_length0.450 INCHES NOMINAL IN
style_designatorFLARELESS
seat_angle_in_deg12.0
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter0.312 INCHES NOMINAL IN
sleeve_outside_diameter0.252 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed0.188 INCHES NOMINAL IN
NSN4730-00-729-7035
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21922-3C · 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
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
FLANGE WIDTH: 0.060 INCHES NOMINAL IN
•
SLEEVE OUTSIDE DIAMETER: 0.252 INCHES NOMINAL IN
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.188 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 12.0
•
MATERIAL: STEEL COMP 630
•
STYLE DESIGNATOR: FLARELESS
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
FLANGE WIDTH0.060 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER0.252 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.188 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
SEAT ANGLE IN DEG12.0
MATERIALSTEEL COMP 630
STYLE DESIGNATORFLARELESS
SURFACE TREATMENTPASSIVATE
OVERALL LENGTH0.450 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
AS18280Interchangeable
interchangeable cross-reference
interchangeable
MS21922-BInterchangeable
interchangeable cross-reference
interchangeable
MS21922-3Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS18280Interchangeable
interchangeable cross-reference
interchangeable
44005BInterchangeable
interchangeable cross-reference
interchangeable
MS21922-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21922-3C?
MS21922-3C is a SLEEVE,CLINCH,TUBE FITTING.
What parts can replace MS21922-3C?
There are 21 known substitutes for MS21922-3C: AS18280, MS21922-B, MS21922-3 and 18 more. Substitute compatibility should be verified for your specific system.
Is MS21922-3C still available?
MS21922-3C is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026