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68A4-D1257-1 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

68A4-D1257-1: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM OR STEEL OR STEEL CORROSION RESISTING BODY, overall_length: 4.070 INCHES NOMINAL IN, style_designator: MALE COUPLING HALF, surface_treatment: ANODIZE OR PASSIVATE OR CADMIUM BODY, end_item_identification: HYDRAULIC CART DIESEL, material_document_and_classification: MIL-A-8625 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-P-416 FED SPEC 3RD MATERIAL RESPONSE BODY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-525-5853, 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
68A4-D1257-1
NSN: 4730-01-525-5853
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM OR STEEL OR STEEL CORROSION RESISTING BODY
overall_length4.070 INCHES NOMINAL IN
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE OR PASSIVATE OR CADMIUM BODY
end_item_identificationHYDRAULIC CART DIESEL
material_document_and_classificationMIL-A-8625 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-P-416 FED SPEC 3RD MATERIAL RESPONSE BODY
NSN4730-01-525-5853
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 68A4-D1257-1 · 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
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-P-416 FED SPEC 3RD MATERIAL RESPONSE BODY
•
SURFACE TREATMENT: ANODIZE OR PASSIVATE OR CADMIUM BODY
•
MATERIAL: ALUMINUM OR STEEL OR STEEL CORROSION RESISTING BODY
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORMALE COUPLING HALF
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-P-416 FED SPEC 3RD MATERIAL RESPONSE BODY
OVERALL LENGTH4.070 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OR PASSIVATE OR CADMIUM BODY
END ITEM IDENTIFICATIONHYDRAULIC CART DIESEL
MATERIALALUMINUM OR STEEL OR STEEL CORROSION RESISTING BODY
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 1
68A4-D1257Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 68A4-D1257-1?
68A4-D1257-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 68A4-D1257-1?
There is 1 known substitute for 68A4-D1257-1: 68A4-D1257. Substitute compatibility should be verified for your specific system.
What is the NSN for 68A4-D1257-1?
68A4-D1257-1 is cataloged in the U.S. Government catalog under NSN 4730-01-525-5853. 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.