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C7864-6 — UNION,BULKHEAD

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

C7864-6: UNION,BULKHEAD.

The UNION,BULKHEAD is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-050-2697, 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
C7864-6
NSN: 4730-01-050-2697
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
Part NumberC7864-6
NSN4730-01-050-2697
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C7864-6 · 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: CRES,AMS5656,PASSIVATED,MIL-S-5002,1.853 IN.MIN,1.883 IN.MAX O/A LG,FIRST END SWAGED WITH GROOVES,HEX FLANGE,0.172 IN.MIN,0.202 IN.MAX THK,0.803 IN.MIN,0.823 IN.MAX W ACROSS FLATS,SECOND END THD 0.562-20 UNJS-CL3A IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES,AMS5656,PASSIVATED,MIL-S-5002,1.853 IN.MIN,1.883 IN.MAX O/A LG,FIRST END SWAGED WITH GROOVES,HEX FLANGE,0.172 IN.MIN,0.202 IN.MAX THK,0.803 IN.MIN,0.823 IN.MAX W ACROSS FLATS,SECOND END THD 0.562-20 UNJS-CL3A 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 1
D11019-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C7864-6?
C7864-6 is a UNION,BULKHEAD.
What parts can replace C7864-6?
There is 1 known substitute for C7864-6: D11019-6. Substitute compatibility should be verified for your specific system.
What is the NSN for C7864-6?
C7864-6 is cataloged in the U.S. Government catalog under NSN 4730-01-050-2697. 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.