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5164146 ✓ 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: IRON, thickness: 1.500 INCHES NOMINAL IN, flange_diameter: 5.875 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.406 INCHES NOMINAL IN, nominal_thread_size: 4.000 INCHES 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 4730-00-499-3556, 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
5164146
NSN: 4730-00-499-3556
FSC: 4730
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialIRON
thickness1.500 INCHES NOMINAL IN
flange_diameter5.875 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.406 INCHES NOMINAL IN
bolt_hole_quantity4
nominal_thread_size4.000 INCHES IN
bolt_circle_diameter5.375 INCHES NOMINAL IN
flange_section_stylePLAIN FACE
end_item_identificationJMN EMORY S. LAND CLASS AS
face_seating_surface_conditionMACHINED
screw_thread_series_designatorNPTF
NSN4730-00-499-3556
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5164146 · 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
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL THREAD SIZE: 4.000 INCHES IN
•
MATERIAL: IRON
•
FLANGE DIAMETER: 5.875 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE
•
BOLT HOLE QUANTITY: 4
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 4.000 INCHES IN
•
SCREW THREAD SERIES DESIGNATOR: NPTF
TECHNICAL CHARACTERISTICS (FLIS)
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL THREAD SIZE4.000 INCHES IN
MATERIALIRON
FLANGE DIAMETER5.875 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE
BOLT HOLE QUANTITY4
NOMINAL PIPE SIZE FOR WHICH DESIGNED4.000 INCHES IN
SCREW THREAD SERIES DESIGNATORNPTF
BOLT CIRCLE DIAMETER5.375 INCHES NOMINAL IN
THICKNESS1.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
D611-3Interchangeable
interchangeable cross-reference
interchangeable
D611Interchangeable
interchangeable cross-reference
interchangeable
PC5164146Interchangeable
Same NIIN cross-reference
interchangeable
K-5164146Interchangeable
Same NIIN cross-reference
interchangeable
FP-5164146Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5164146?
5164146 is a FLANGE,PIPE.
What parts can replace 5164146?
There are 5 known substitutes for 5164146: D611-3, D611, PC5164146 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5164146?
5164146 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-499-3556. 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