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MS21922-20C — Technical Data Sheet

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— · 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: 0.120 INCHES NOMINAL IN, overall_length: 0.800 INCHES NOMINAL IN, style_designator: FLARELESS, seat_angle_in_deg: 45.0, surface_treatment: PASSIVATE. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-729-7034, 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
MS21922-20C
NSN: 4730-00-729-7034
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 630
flange_width0.120 INCHES NOMINAL IN
overall_length0.800 INCHES NOMINAL IN
style_designatorFLARELESS
seat_angle_in_deg45.0
surface_treatmentPASSIVATE
casehardening_indicatorCASEHARDENED
flange_outside_diameter1.437 INCHES NOMINAL IN
sleeve_outside_diameter1.339 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed1.250 INCHES NOMINAL IN
NSN4730-00-729-7034
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21922-20C · 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
•
SLEEVE OUTSIDE DIAMETER: 1.339 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 1.437 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.0
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.250 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.120 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL COMP 630
•
STYLE DESIGNATOR: FLARELESS
TECHNICAL CHARACTERISTICS
SLEEVE OUTSIDE DIAMETER1.339 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER1.437 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.0
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.250 INCHES NOMINAL IN
FLANGE WIDTH0.120 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 630
STYLE DESIGNATORFLARELESS
CASEHARDENING INDICATORCASEHARDENED
OVERALL LENGTH0.800 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
AS18280InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS21922-BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS21922-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SAE-AS18280InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
44005BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS21922-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21922-20C?
MS21922-20C is a SLEEVE,CLINCH,TUBE FITTING.
What parts can replace MS21922-20C?
There are 21 known substitutes for MS21922-20C: AS18280, MS21922-B, MS21922-3 and 18 more. Substitute compatibility should be verified for your specific system.
Is MS21922-20C still available?
MS21922-20C 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: September 2026