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PartsTable / COMPONENT / 100-4641866-FTG NO.17 E 4-C
100-4641866-FTG NO.17 E 4-C ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The 100-4641866-FTG NO.17 E 4-C is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-161-2055, 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
100-4641866-FTG NO.17 E 4-C
NSN: 4730-01-161-2055
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
Part Number100-4641866-FTG NO.17 E 4-C
NSN4730-01-161-2055
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 100-4641866-FTG NO.17 E 4-C · 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
•
THICKNESS: 3.360 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 12
•
FACE SEATING SURFACE CONDITION: MACHINED
•
MATERIAL: NICKEL ALLOY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
RAISED FACE DIAMETER: 7.500 INCHES NOMINAL IN
•
FLANGE DIAMETER: 9.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS3.360 INCHES NOMINAL IN
BOLT HOLE QUANTITY12
FACE SEATING SURFACE CONDITIONMACHINED
MATERIALNICKEL ALLOY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
RAISED FACE DIAMETER7.500 INCHES NOMINAL IN
FLANGE DIAMETER9.750 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER8.250 INCHES NOMINAL IN
RAISED FACE HEIGHT0.020 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
AES01C625E00AW9A91Interchangeable
interchangeable cross-reference
interchangeable
MS90728-176Interchangeable
interchangeable cross-reference
interchangeable
100-4641865Interchangeable
interchangeable cross-reference
interchangeable
87415-0163Interchangeable
interchangeable cross-reference
interchangeable
100-4641865 ITEM 11Interchangeable
interchangeable cross-reference
interchangeable
100-4641865 ITEM 13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 100-4641866-FTG NO.17 E 4-C?
100-4641866-FTG NO.17 E 4-C is a 100-4641866-FTG NO.17 E 4-C.
What parts can replace 100-4641866-FTG NO.17 E 4-C?
There are 23 known substitutes for 100-4641866-FTG NO.17 E 4-C: AES01C625E00AW9A91, MS90728-176, 100-4641865 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 100-4641866-FTG NO.17 E 4-C?
100-4641866-FTG NO.17 E 4-C is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-161-2055. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026