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MS21902J24 — INJECTOR ASSEMBLY,FUEL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21902J24: INJECTOR ASSEMBLY,FUEL.

The INJECTOR ASSEMBLY,FUEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 12.000 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED INTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS, style_designator: FLARELESS W/ CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-244-9132, 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
MS21902J24
NSN: 4730-01-244-9132
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
seat_angle12.000 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED INTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
style_designatorFLARELESS W/ CENTER WRENCHING FACILITY
nominal_thread_size1.8750 INCHES ALL ENDS IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
specification/standard_data96906-MS21902 GOVERNMENT STANDARD
material_document_and_classificationMS21902 MIL STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated1.500 INCHES ALL ENDS IN
NSN4730-01-244-9132
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21902J24 · 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
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MS21902 MIL STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.500 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 1.8750 INCHES ALL ENDS IN
•
SEAT ANGLE: 12.000 DEGREES ALL ENDS
•
SPECIFICATION/STANDARD DATA: 96906-MS21902 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORFLARELESS W/ CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATIONMS21902 MIL STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES ALL ENDS IN
NOMINAL THREAD SIZE1.8750 INCHES ALL ENDS IN
SEAT ANGLE12.000 DEGREES ALL ENDS
SPECIFICATION/STANDARD DATA96906-MS21902 GOVERNMENT STANDARD
THREAD CLASS3A ALL ENDS A
THREAD QUANTITY PER INCH12 ALL ENDS
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
AS18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS21902Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21902J24?
MS21902J24 is a INJECTOR ASSEMBLY,FUEL.
What parts can replace MS21902J24?
There are 3 known substitutes for MS21902J24: AS18280, AS21902, SAE-AS18280. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21902J24?
MS21902J24 is cataloged in the U.S. Government catalog under NSN 4730-01-244-9132. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.