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GA2021-8 — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

GA2021-8: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, nut_style: TUBE COUPLING, nut_height: 1.005 INCHES NOMINAL IN, lubrication: DRY FILM LUBRICANT, thread_class: 2B, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-277-3386, 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
GA2021-8
NSN: 4730-01-277-3386
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03647 — GLOBE AEROSPACE INC (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
nut_styleTUBE COUPLING
nut_height1.005 INCHES NOMINAL IN
lubricationDRY FILM LUBRICANT
thread_class2B
thread_seriesUN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
length_to_shoulder0.530 INCHES NOMINAL IN
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
largest_outside_diameter0.858 INCHES NOMINAL IN
NSN4730-01-277-3386
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: GA2021-8 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
LENGTH TO SHOULDER: 0.530 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
LARGEST OUTSIDE DIAMETER: 0.858 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
LENGTH TO SHOULDER0.530 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LARGEST OUTSIDE DIAMETER0.858 INCHES NOMINAL IN
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT1.005 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
DPON10HX8Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACN10HX8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BACN10HXReference 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 GA2021-8?
GA2021-8 is a NUT,TUBE COUPLING.
What parts can replace GA2021-8?
There are 3 known substitutes for GA2021-8: DPON10HX8, BACN10HX8, BACN10HX. Substitute compatibility should be verified for your specific system.
What is the NSN for GA2021-8?
GA2021-8 is cataloged in the U.S. Government catalog under NSN 4730-01-277-3386. 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.