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40563A — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

40563A: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include nominal_width: 5.8 INCHES ALL ENDS IN, nominal_length: 4.0 INCHES ALL ENDS IN, special_features: DEPTH: 1.3 IN IN, end_item_identification: 4120-01-541-4688, part_name_assigned_by_controlling_agency: QUICK COUPLER, 90 DEG ELBOW, 1/4" FFL X 1/4" MFL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-289-6744, 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
40563A
NSN: 4730-01-289-6744
NIINs: 012896744, 016250198
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3E2T9 — SPX CORPORATION DIV SPX / ROBINAIR DIV (USA)
SPECIFICATIONS
nominal_width5.8 INCHES ALL ENDS IN
nominal_length4.0 INCHES ALL ENDS IN
special_featuresDEPTH: 1.3 IN IN
end_item_identification4120-01-541-4688
part_name_assigned_by_controlling_agencyQUICK COUPLER, 90 DEG ELBOW, 1/4" FFL X 1/4" MFL
NSN4730-01-289-6744
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 40563A · 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
SUBSTITUTES & CROSS-REFERENCES 1
40563Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40563A?
40563A is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 40563A?
There is 1 known substitute for 40563A: 40563. Substitute compatibility should be verified for your specific system.
What is the NSN for 40563A?
40563A is cataloged in the U.S. Government catalog under NSN 4730-01-289-6744. 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.