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PartsTable / COMPONENT / 100-4641866 DETAIL 4A
100-4641866 DETAIL 4A ✓ 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 FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thickness: 0.730 INCHES NOMINAL IN, thread_class: 2B, flange_diameter: 4.750 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-130-1286, 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 DETAIL 4A
NSN: 4730-01-130-1286
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thickness0.730 INCHES NOMINAL IN
thread_class2B
flange_diameter4.750 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.500 INCHES NOMINAL IN
bolt_hole_quantity4
nominal_thread_size0.562 INCHES IN
bolt_circle_diameter3.125 INCHES NOMINAL IN
face_seating_surface_conditionMACHINED
screw_thread_series_designatorUNF
material_document_and_classificationQQ-N-281,CL A,FORM 6 FED SPEC SINGLE MATERIAL RESPONSE
NSN4730-01-130-1286
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 100-4641866 DETAIL 4A · 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: 0.730 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE QUANTITY: 4
•
THREAD CLASS: 2B
•
FLANGE DIAMETER: 4.750 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.730 INCHES NOMINAL IN
MATERIALNICKEL ALLOY
SCREW THREAD SERIES DESIGNATORUNF
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE QUANTITY4
THREAD CLASS2B
FLANGE DIAMETER4.750 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A,FORM 6 FED SPEC SINGLE MATERIAL RESPONSE
BOLT CIRCLE DIAMETER3.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
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 DETAIL 4A?
100-4641866 DETAIL 4A is a FLANGE,PIPE.
What parts can replace 100-4641866 DETAIL 4A?
There are 24 known substitutes for 100-4641866 DETAIL 4A: AES01C625E00AW9A91, MS90728-176, 100-4641865 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 100-4641866 DETAIL 4A?
100-4641866 DETAIL 4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-130-1286. 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