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MS21913J5 — PLUG,TUBE FITTING,THREADED

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21913J5: PLUG,TUBE FITTING,THREADED.

The PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, head_height: 0.218 INCHES NOMINAL IN, thread_class: 3A INTERNAL A, overall_length: 0.671 INCHES NOMINAL IN, connection_style: FLARELESS, style_designator: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC). This part is cataloged in the U.S.

Government catalog under NSN 4730-01-110-3378, 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
MS21913J5
NSN: 4730-01-110-3378
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
head_height0.218 INCHES NOMINAL IN
thread_class3A INTERNAL A
overall_length0.671 INCHES NOMINAL IN
connection_styleFLARELESS
style_designatorPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
thread_directionRIGHT-HAND INTERNAL
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.500 INCHES INTERNAL IN
thread_pitch_diameters+0.4919 TO 0.5000 INCHES INTERNAL IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) EXTERNAL
specification/standard_data96906-MS21913 GOVERNMENT STANDARD
NSN4730-01-110-3378
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21913J5 · 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: 0.218 INCHES NOMINAL IN
•
CONNECTION STYLE: FLARELESS
•
STYLE DESIGNATOR: PLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
•
THREAD PITCH DIAMETERS: +0.4919 TO 0.5000 INCHES INTERNAL IN
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
NOMINAL THREAD SIZE: 0.500 INCHES INTERNAL IN
•
SPECIFICATION/STANDARD DATA: 96906-MS21913 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.218 INCHES NOMINAL IN
CONNECTION STYLEFLARELESS
STYLE DESIGNATORPLUG, TUBE FITTING FLARELESS (NOTE: DRILLED HOLE IS OPTIONAL, SHOULD NOT BE CONSIDERED AS A SEPARATING CHARACTERISTIC)
THREAD PITCH DIAMETERS+0.4919 TO 0.5000 INCHES INTERNAL IN
OVERALL LENGTH0.671 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND INTERNAL
NOMINAL THREAD SIZE0.500 INCHES INTERNAL IN
SPECIFICATION/STANDARD DATA96906-MS21913 GOVERNMENT STANDARD
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A INTERNAL A
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 4
AS21913J5Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS21913Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS18280Reference 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 MS21913J5?
MS21913J5 is a PLUG,TUBE FITTING,THREADED.
What parts can replace MS21913J5?
There are 4 known substitutes for MS21913J5: AS21913J5, AS21913, AS18280 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21913J5?
MS21913J5 is cataloged in the U.S. Government catalog under NSN 4730-01-110-3378. 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.