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Technical Data Sheet
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3778-12 — BODY,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3778-12: BODY,QUICK DISCONNECT.

The BODY,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: ALUMINUM PER QQ-A-268 2024,ANODIIZE PER MIL-A-8625,DYED YELLOW,1.250 IN. LG O/A,1.370 IN.

ACROSS FLATS IN. This part is cataloged in the U.S. Government catalog under NSN 4730-01-009-1760, 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
3778-12
NSN: 4730-01-009-1760
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionALUMINUM PER QQ-A-268 2024,ANODIIZE PER MIL-A-8625,DYED YELLOW,1.250 IN. LG O/A,1.370 IN. ACROSS FLATS IN
NSN4730-01-009-1760
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3778-12 · 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: ALUMINUM PER QQ-A-268 2024,ANODIIZE PER MIL-A-8625,DYED YELLOW,1.250 IN. LG O/A,1.370 IN. ACROSS FLATS IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM PER QQ-A-268 2024,ANODIIZE PER MIL-A-8625,DYED YELLOW,1.250 IN. LG O/A,1.370 IN. ACROSS FLATS IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3778-12?
3778-12 is a BODY,QUICK DISCONNECT.
What is the NSN for 3778-12?
3778-12 is cataloged in the U.S. Government catalog under NSN 4730-01-009-1760. 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.