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7541973 — PARTS KIT,QUICK DISCONNECT COUPL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7541973: PARTS KIT,QUICK DISCONNECT COUPL.

PARTS KIT,QUICK DISCONNECT COUPL. Key specifications include end_item_name: AIRCRAFT, end_item_source: 26512, component_quantity: 15, end_item_identification: MODEL A-10. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-189-5438, 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
7541973
NSN: 4730-00-189-5438
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05228 — PTI TECHNOLOGIES INC. (USA)
SPECIFICATIONS
end_item_nameAIRCRAFT
end_item_source26512
component_quantity15
end_item_identificationMODEL A-10
NSN4730-00-189-5438
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7541973 · 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
•
COMPONENT QUANTITY: 15
•
END ITEM SOURCE: 26512
•
END ITEM NAME: AIRCRAFT
•
NONSUPPLY ITEMS AND QUANTITIES: 05228 7531325 SPRING 1; 05228 7522861 BALL 6; 05228 7531310 SPRING,TORSION 1; 05228 7542616 PRESSURE LOCK ASSY 1; 05228 753140 O-RING 1; 05228 7531318 LANYARD ASSY 1; 05228 7531822 GASKET 1; 05228 7531908 LOCK SCREW 3
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY15
END ITEM SOURCE26512
END ITEM NAMEAIRCRAFT
NONSUPPLY ITEMS AND QUANTITIES05228 7531325 SPRING 1; 05228 7522861 BALL 6; 05228 7531310 SPRING,TORSION 1; 05228 7542616 PRESSURE LOCK ASSY 1; 05228 753140 O-RING 1; 05228 7531318 LANYARD ASSY 1; 05228 7531822 GASKET 1; 05228 7531908 LOCK SCREW 3
END ITEM IDENTIFICATIONMODEL A-10
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

No substitute or cross-reference records for this part.

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 7541973?
7541973 is a PARTS KIT,QUICK DISCONNECT COUPL.
What is the NSN for 7541973?
7541973 is cataloged in the U.S. Government catalog under NSN 4730-00-189-5438. 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.