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5916904 — CAP,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5916904: CAP,TUBE.

The CAP,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 37.0 DEGREES, thread_class: 3B INTERNAL, connection_style: PRESSURE SEAL FLARED, style_designator: CAP, TUBE, FLARED, thread_direction: RIGHT-HAND INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-313-9444, 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
5916904
NSN: 4730-01-313-9444
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
seat_angle37.0 DEGREES
thread_class3B INTERNAL
connection_stylePRESSURE SEAL FLARED
style_designatorCAP, TUBE, FLARED
thread_directionRIGHT-HAND INTERNAL
surface_treatmentOXIDE OVERALL
nominal_thread_size0.438 INCHES INTERNAL IN
thread_series_designatorUNF INTERNAL
tube_outside_diameter_for_which_designed0.250 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-313-9444
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5916904 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: PRESSURE SEAL FLARED
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CAP, TUBE, FLARED
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
NOMINAL THREAD SIZE: 0.438 INCHES INTERNAL IN
•
SEAT ANGLE: 37.0 DEGREES
•
SURFACE TREATMENT: OXIDE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEPRESSURE SEAL FLARED
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
STYLE DESIGNATORCAP, TUBE, FLARED
THREAD DIRECTIONRIGHT-HAND INTERNAL
NOMINAL THREAD SIZE0.438 INCHES INTERNAL IN
SEAT ANGLE37.0 DEGREES
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3B INTERNAL
MATERIALSTEEL COMP 304 OVERALL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5916904?
5916904 is a CAP,TUBE.
What is the NSN for 5916904?
5916904 is cataloged in the U.S. Government catalog under NSN 4730-01-313-9444. 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.