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MS21913D16 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21913D16: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2014 OVERALL, seat_angle: 12.0 DEGREES, head_height: 0.260 INCHES MINIMUM AND 0.334 INCHES MAXIMUM IN, overall_length: 0.718 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN, connection_style: FLARELESS, special_features: WEAPON SYSTEM ESSENTIAL;AAJD WAS 3A A. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-6938, 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
MS21913D16
NSN: 4730-00-203-6938
NIINs: 002036938, 005557804
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2014 OVERALL
seat_angle12.0 DEGREES
head_height0.260 INCHES MINIMUM AND 0.334 INCHES MAXIMUM IN
overall_length0.718 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN
connection_styleFLARELESS
special_featuresWEAPON SYSTEM ESSENTIAL;AAJD WAS 3A A
style_designatorPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentANODIZE OVERALL
nominal_thread_size0.562 INCHES EXTERNAL IN
end_item_identificationFAN VIRGINIA CLASS CGN (41)
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) EXTERNAL
NSN4730-00-203-6938
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21913D16 · 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
•
HEAD HEIGHT: 0.375 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 1.312 INCHES EXTERNAL IN
•
SEAT ANGLE: 12.0 DEGREES
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.375 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.062 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE1.312 INCHES EXTERNAL IN
SEAT ANGLE12.0 DEGREES
SPECIFICATION/STANDARD DATA96906-MS21913 GOVERNMENT STANDARD
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL;AAJD WAS 3A A
SUBSTITUTES & CROSS-REFERENCES 4
AS18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-18280Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS21913Reference 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 MS21913D16?
MS21913D16 is a PLUG,TUBE FITTING,THREADED.
What parts can replace MS21913D16?
There are 4 known substitutes for MS21913D16: AS18280, MIL-F-18280, AS21913 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21913D16?
MS21913D16 is cataloged in the U.S. Government catalog under NSN 4730-00-203-6938. This indicates validated use in U.S. government and defense supply chains.
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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.