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Technical Data Sheet
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C30020A — COUPLER ASSEMBLY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

C30020A: COUPLER ASSEMBLY.

The COUPLER ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-167-3634, 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
C30020A
NSN: 4730-01-167-3634
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 08118 — EATON AVIATION CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL; FURNISHED WITH RETAINER,TOGGLE,INSPECTION HOLE,HINGE ASSEMBLY,BONDING JUMPER,TUBE O.D.-2.000 INCHES,WIDTH OF BAND-1.580 INCH IN
NSN4730-01-167-3634
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C30020A · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; FURNISHED WITH RETAINER,TOGGLE,INSPECTION HOLE,HINGE ASSEMBLY,BONDING JUMPER,TUBE O.D.-2.000 INCHES,WIDTH OF BAND-1.580 INCH IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; FURNISHED WITH RETAINER,TOGGLE,INSPECTION HOLE,HINGE ASSEMBLY,BONDING JUMPER,TUBE O.D.-2.000 INCHES,WIDTH OF BAND-1.580 INCH IN
SUBSTITUTES & CROSS-REFERENCES 3
DAA3122P056Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
DAA3122P056-103Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CA33020Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is C30020A?
C30020A is a COUPLER ASSEMBLY.
What parts can replace C30020A?
There are 3 known substitutes for C30020A: DAA3122P056, DAA3122P056-103, CA33020. Substitute compatibility should be verified for your specific system.
What is the NSN for C30020A?
C30020A is cataloged in the U.S. Government catalog under NSN 4730-01-167-3634. 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.