PartsTable
Technical Data Sheet
Download PDF

8364383 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8364383: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 OR STEEL COMP 1118 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 2B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-323-0589, 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
8364383
NSN: 4730-00-323-0589
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1212 OR STEEL COMP 1118 OVERALL
nut_styleTUBE COUPLING
nut_height0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
seat_angle45.00 DEGREES NOMINAL
thread_class2B
thread_seriesUNF
special_featuresTWO GROOVES FOR IDENTIFICATION FOR LONG TAIL SLEEVE APPLICATION
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
fabrication_methodMACHINED
length_to_shoulder0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
width_across_flats0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
NSN4730-00-323-0589
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8364383 · 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
•
LENGTH TO SHOULDER: 0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NUT HEIGHT: 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
SEAT ANGLE45.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN
SPECIAL FEATURESTWO GROOVES FOR IDENTIFICATION FOR LONG TAIL SLEEVE APPLICATION
SURFACE TREATMENTCADMIUM OR ZINC 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 4
4730003230589Reference document
Same NSN cross-reference
Reference document — Secondary reference
25704-281002T2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
108-10588Reference document
Same NSN cross-reference
Reference document — Secondary reference
25704-281002-02-0Same 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
Ready to buy 8364383?
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 8364383?
8364383 is a NUT,TUBE COUPLING.
What parts can replace 8364383?
There are 4 known substitutes for 8364383: 4730003230589, 25704-281002T2, 108-10588 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8364383?
8364383 is cataloged in the U.S. Government catalog under NSN 4730-00-323-0589. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8364383

✓ 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.