ZZ-H-521 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited

— · PIPE SECTION

PRODUCT OVERVIEW

ZZ-H-521: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 30.0 DEGREES FIRST END, connection_type: THREADED INTERNAL PIPE FIRST END, inside_diameter: 0.380 INCHES NOMINAL IN, connection_style: SWIVEL NUT, INVERTED FLARE FIRST END, special_features: WEAPON SYSTEM ESSENTIAL; ADDITIONAL MEDIA FOR WHICH DESIGNED: DOPE, MULSIONS, SOLVENTS, special_markings: SPRAY. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-277-8976, 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

ZZ-H-521

NSN: 4720-00-277-8976
NIINs: 002778976, 002893429
FSC: 4720 — Hose and Flexible Tubing
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)

SPECIFICATIONS

seat_angle	30.0 DEGREES FIRST END
connection_type	THREADED INTERNAL PIPE FIRST END
inside_diameter	0.380 INCHES NOMINAL IN
connection_style	SWIVEL NUT, INVERTED FLARE FIRST END
special_features	WEAPON SYSTEM ESSENTIAL; ADDITIONAL MEDIA FOR WHICH DESIGNED: DOPE, MULSIONS, SOLVENTS
special_markings	SPRAY
thread_direction	RIGHT-HAND FIRST END
burst_test_pressure	800.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size	0.375 INCHES FIRST END IN
end_connection_design	STRAIGHT FIRST END
inside_surface_condition	SMOOTH
media_for_which_designed	FUEL/OIL, HYDROCARBON SINGLE RESPONSE
NSN	4720-00-277-8976

COMPONENT DIAGRAM

KEY FEATURES

•

MEASURING METHOD AND LENGTH: 600.000 INCHES NOMINAL OVERALL IN

•

LAYER COMPOSITION AND LOCATION: 1ST LAYER MOLDED RUBBER, SYNTHETIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC

•

CROSS-SECTIONAL SHAPE STYLE: ROUND

•

SPECIFICATION/STANDARD DATA: 81348-ZZ-H-521 GOVERNMENT SPECIFICATION

•

INSIDE DIAMETER: 0.312 INCHES NOMINAL IN

•

INSIDE SURFACE CONDITION: SMOOTH

•

MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE

TECHNICAL CHARACTERISTICS

MEASURING METHOD AND LENGTH	600.000 INCHES NOMINAL OVERALL IN
LAYER COMPOSITION AND LOCATION	1ST LAYER MOLDED RUBBER, SYNTHETIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
CROSS-SECTIONAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	81348-ZZ-H-521 GOVERNMENT SPECIFICATION
INSIDE DIAMETER	0.312 INCHES NOMINAL IN
INSIDE SURFACE CONDITION	SMOOTH
SPECIAL FEATURES	MATERIAL: RUBBER SYNTHETIC TUBE
MEDIA FOR WHICH DESIGNED	FUEL/OIL, HYDROCARBON SINGLE RESPONSE
BURST TEST PRESSURE	800.0 POUNDS PER SQUARE INCH LBS
OUTER COVERING ENVIRONMENTAL PROTECTION	COLD RESISTANT AND SOLVENT RESISTANT

SUBSTITUTES & CROSS-REFERENCES 2

A-A-59613Reference document

Same NSN cross-reference

Reference document — Identification reference

AA59613-031-600Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 ZZ-H-521?

ZZ-H-521 is a HOSE ASSEMBLY,NONMETALLIC.

What parts can replace ZZ-H-521?

There are 2 known substitutes for ZZ-H-521: A-A-59613, AA59613-031-600. Substitute compatibility should be verified for your specific system.

What is the NSN for ZZ-H-521?

ZZ-H-521 is cataloged in the U.S. Government catalog under NSN 4720-00-277-8976. This indicates validated use in U.S. government and defense supply chains.

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ZZ-H-521 — HOSE ASSEMBLY,NONMETALLIC

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