PartsTable
Technical Data Sheet
MS21907-6 ✓ 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 1010, flow_angle: 45.0 DEGREES, leg_length: 1.562 INCHES NOMINAL FIRST END IN, seat_angle: 12.0 DEGREES ALL ENDS, head_height: 0.078 INCHES NOMINAL IN, thread_class: 3A ALL ENDS A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-7487, 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
MS21907-6
NSN: 4730-00-203-7487
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1010
flow_angle45.0 DEGREES
leg_length1.562 INCHES NOMINAL FIRST END IN
seat_angle12.0 DEGREES ALL ENDS
head_height0.078 INCHES NOMINAL IN
thread_class3A ALL ENDS A
overall_height0.281 INCHES NOMINAL IN
prong_quantity8
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
style_designatorSTANDARD
surface_treatmentCADMIUM OR ZINC
NSN4730-00-203-7487
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21907-6 · 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
SEAT ANGLE: 12.0 DEGREES ALL ENDS
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
SPECIFICATION/STANDARD DATA: 96906-MS21907 GOVERNMENT STANDARD
FLOW ANGLE: 45.0 DEGREES
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: STEEL COMP 1137 OR STEEL COMP 1141 OR STEEL COMP 4130 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE12.0 DEGREES ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
SPECIFICATION/STANDARD DATA96906-MS21907 GOVERNMENT STANDARD
FLOW ANGLE45.0 DEGREES
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL COMP 1137 OR STEEL COMP 1141 OR STEEL COMP 4130 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A576-67T ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
640247Interchangeable
interchangeable cross-reference
interchangeable
SS48172Interchangeable
interchangeable cross-reference
interchangeable
AS18280Interchangeable
Same NIIN cross-reference
interchangeable
AS21907Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21907-6?
MS21907-6 is a INJECTOR ASSEMBLY,FUEL.
What parts can replace MS21907-6?
There are 4 known substitutes for MS21907-6: 640247, SS48172, AS18280 and 1 more. Substitute compatibility should be verified for your specific system.
Is MS21907-6 still available?
MS21907-6 is currently cancelled.
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