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PartsTable / COMPONENT / 2641-068ASSYIRM
2641-068ASSYIRM ✓ 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: STEEL, thickness: 0.500 INCHES NOMINAL IN, thread_class: 2B, flange_diameter: 3.813 INCHES NOMINAL IN, furnished_items: GASKET, style_designator: ROUND, ONE BOLT HOLE CIRCLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-177-1815, 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
2641-068ASSYIRM
NSN: 4730-00-177-1815
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL
thickness0.500 INCHES NOMINAL IN
thread_class2B
flange_diameter3.813 INCHES NOMINAL IN
furnished_itemsGASKET
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.380 INCHES NOMINAL IN
bolt_hole_quantity4
nominal_thread_size0.562 INCHES IN
bolt_circle_diameter2.437 INCHES NOMINAL IN
flange_section_stylePLAIN FACE
face_seating_surface_conditionMACHINED
NSN4730-00-177-1815
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2641-068ASSYIRM · 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
•
MATERIAL: STEEL
•
FACE SEATING SURFACE CONDITION: MACHINED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-16113,T1 MIL STD SINGLE MATERIAL RESPONSE
•
THREAD CLASS: 2B
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
FLANGE DIAMETER: 3.813 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 2.437 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.380 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
FACE SEATING SURFACE CONDITIONMACHINED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-16113,T1 MIL STD SINGLE MATERIAL RESPONSE
THREAD CLASS2B
SCREW THREAD SERIES DESIGNATORUNF
FLANGE DIAMETER3.813 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.437 INCHES NOMINAL IN
BOLT HOLE DIAMETER0.380 INCHES NOMINAL IN
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
SS845-1889817Interchangeable
interchangeable cross-reference
interchangeable
15-97-0933Interchangeable
interchangeable cross-reference
interchangeable
15-97-0972Interchangeable
interchangeable cross-reference
interchangeable
15-97-0973Interchangeable
interchangeable cross-reference
interchangeable
2640-068REVSPC1T012Interchangeable
interchangeable cross-reference
interchangeable
15-97-0934Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2641-068ASSYIRM?
2641-068ASSYIRM is a FLANGE,PIPE.
What parts can replace 2641-068ASSYIRM?
There are 11 known substitutes for 2641-068ASSYIRM: SS845-1889817, 15-97-0933, 15-97-0972 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2641-068ASSYIRM?
2641-068ASSYIRM is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-177-1815. 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