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AS5179W04L — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS5179W04L: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 NUT, nut_style: TUBE FITTING LOCKNUT, nut_height: 0.281 INCHES NOMINAL IN, nut_length: 0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 4730-01-698-4928, 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
AS5179W04L
NSN: 4730-01-698-4928
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 NUT
nut_styleTUBE FITTING LOCKNUT
nut_height0.281 INCHES NOMINAL IN
nut_length0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
surface_treatmentANODIZE NUT
width_across_flats0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
nominal_thread_size0.4375 INCHES IN
packing_recess_depth0.042 INCHES NOMINAL IN
end_item_identificationSPECIAL, AIR VEHICLE, AIRCRAFT
NSN4730-01-698-4928
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS5179W04L · 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
•
WIDTH ACROSS FLATS: 0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
•
PACKING RECESS DIAMETER: 0.448 INCHES NOMINAL IN
•
HOLE THREAD QUANTITY PER INCH: 20
•
NUT LENGTH: 0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
HOLE CONFIGURATION STYLE: CONFIGURATION A
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.4375 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
PACKING RECESS DIAMETER0.448 INCHES NOMINAL IN
HOLE THREAD QUANTITY PER INCH20
NUT LENGTH0.678 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
HOLE CONFIGURATION STYLECONFIGURATION A
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.4375 INCHES IN
NUT HEIGHT0.281 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE NUT
SUBSTITUTES & CROSS-REFERENCES 1
SAE-AS5179Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 AS5179W04L?
AS5179W04L is a LOCKNUT,TUBE FITTING.
What parts can replace AS5179W04L?
There is 1 known substitute for AS5179W04L: SAE-AS5179. Substitute compatibility should be verified for your specific system.
What is the NSN for AS5179W04L?
AS5179W04L is cataloged in the U.S. Government catalog under NSN 4730-01-698-4928. 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.