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FC-2544 — ADAPTER ASSEMBLY,FILLER CAP

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

FC-2544: ADAPTER ASSEMBLY,FILLER CAP.

The ADAPTER ASSEMBLY,FILLER CAP is a the manufacturer industrial component. Key specifications include special_features: WEAPONS SYSTEMS ESSENTIAL, end_item_identification: FILLER CAP,AIRCRAFT FUEL TANK, criticality_code_justification: FEAT. 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
FC-2544
NSN: 4730-00-056-4875
NIINs: 000564875, 004038166
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 47805 — INGERSOLL-RAND CO PROTO TOOL DIV TOOL GROUP HEADQUARTERS (USA)
SPECIFICATIONS
special_featuresWEAPONS SYSTEMS ESSENTIAL
end_item_identificationFILLER CAP,AIRCRAFT FUEL TANK
criticality_code_justificationFEAT
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
NSN4730-00-056-4875
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC-2544 · 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
39B4233Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 FC-2544?
FC-2544 is a ADAPTER ASSEMBLY,FILLER CAP.
What parts can replace FC-2544?
There are 2 known substitutes for FC-2544: 39B4233, 2544. Substitute compatibility should be verified for your specific system.
What is the NSN for FC-2544?
FC-2544 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.