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39B4233 — ADAPTER ASSEMBLY,FILLER CAP

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

39B4233: ADAPTER ASSEMBLY,FILLER CAP.

The ADAPTER ASSEMBLY,FILLER CAP is a the manufacturer industrial component. Key specifications include end_item_identification: TANK FILLER,AIRCRAFT FUEL TANK. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-056-4875, 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
39B4233
NSN: 4730-00-056-4875
NIINs: 000564875, 003704832
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10203 — WISCO PRODUCTS INC (USA)
SPECIFICATIONS
end_item_identificationTANK FILLER,AIRCRAFT FUEL TANK
NSN4730-00-056-4875
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 39B4233 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,CADMIUM PLATED,QQ-P-416,TYPE 1,CLASS 2. EXTERNAL THD 2.312-18,NF THD. WITH 5.250 IN. LG SAFETY CHAIN AND CHAIN ANCHOR IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,CADMIUM PLATED,QQ-P-416,TYPE 1,CLASS 2. EXTERNAL THD 2.312-18,NF THD. WITH 5.250 IN. LG SAFETY CHAIN AND CHAIN ANCHOR IN
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESWEAPONS SYSTEMS ESSENTIAL
END ITEM IDENTIFICATIONFILLER CAP,AIRCRAFT FUEL TANK
SUBSTITUTES & CROSS-REFERENCES 2
2544Reference document
Same NSN cross-reference
Reference document — Secondary reference
FC-2544Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 39B4233?
39B4233 is a ADAPTER ASSEMBLY,FILLER CAP.
What parts can replace 39B4233?
There are 2 known substitutes for 39B4233: 2544, FC-2544. Substitute compatibility should be verified for your specific system.
What is the NSN for 39B4233?
39B4233 is cataloged in the U.S. Government catalog under NSN 4730-00-056-4875. 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.