PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4721-6-6S
4721-6-6S ✓ 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 ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-051-4709, 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
4721-6-6S
NSN: 4730-00-051-4709
FSC: 4730
CAGE: 7D712 — HAMPTON RUBBER COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.562 INCHES FIRST END IN
nominal_overall_length2.890 INCHES IN
thread_series_designatorUNF FIRST END
nondefinitive_spec/std_data4B FIGURE
specification/standard_data81343-J516 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
furnished_items_and_quantity1 HOSE COUPLING NUT
NSN4730-00-051-4709
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4721-6-6S · 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
•
SPECIAL TEST FEATURES: TESTED IN ACCORDANCE W/MIL-Q-9858
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL TEST FEATURESTESTED IN ACCORDANCE W/MIL-Q-9858
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
4721-6Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-52525/1Interchangeable
interchangeable cross-reference
interchangeable
LF-211Interchangeable
interchangeable cross-reference
interchangeable
LF-211-4Interchangeable
interchangeable cross-reference
interchangeable
J516Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 4721-6-6S?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 4721-6-6S?
4721-6-6S is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 4721-6-6S?
There are 5 known substitutes for 4721-6-6S: 4721-6, MIL-DTL-52525/1, LF-211 and 2 more. Substitute compatibility should be verified for your specific system.
Is 4721-6-6S still available?
4721-6-6S is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4721-6-6S

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026