PartsTable
Technical Data Sheet
2640-068PC17-4IN ✓ 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: 1.000 INCHES NOMINAL IN, flange_diameter: 8.688 INCHES NOMINAL IN, special_features: INLUDES TWO FLANGES;CENTER HOLE 9/16-18 UNF 2BTHD;ONE PLUG,HEX HEAD 3/8 IN.TUBE SIZE;AND ONE O-RING IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, surface_treatment: OXIDE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-893-3768, 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
2640-068PC17-4IN
NSN: 4730-00-893-3768
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL
thickness1.000 INCHES NOMINAL IN
flange_diameter8.688 INCHES NOMINAL IN
special_featuresINLUDES TWO FLANGES;CENTER HOLE 9/16-18 UNF 2BTHD;ONE PLUG,HEX HEAD 3/8 IN.TUBE SIZE;AND ONE O-RING IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
surface_treatmentOXIDE
bolt_hole_diameter0.687 INCHES NOMINAL IN
bolt_hole_quantity10
bolt_circle_diameter7.187 INCHES NOMINAL IN
flange_section_stylePLAIN FACE
face_seating_surface_conditionUNFINISHED
material_document_and_classificationMIL-S-16113 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN4730-00-893-3768
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2640-068PC17-4IN · 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
BOLT HOLE DIAMETER: 0.687 INCHES NOMINAL IN
THICKNESS: 1.000 INCHES NOMINAL IN
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
SURFACE TREATMENT: OXIDE
FACE SEATING SURFACE CONDITION: UNFINISHED
BOLT CIRCLE DIAMETER: 7.187 INCHES NOMINAL IN
FLANGE DIAMETER: 8.688 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE DIAMETER0.687 INCHES NOMINAL IN
THICKNESS1.000 INCHES NOMINAL IN
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
SURFACE TREATMENTOXIDE
FACE SEATING SURFACE CONDITIONUNFINISHED
SPECIAL FEATURESINLUDES TWO FLANGES;CENTER HOLE 9/16-18 UNF 2BTHD;ONE PLUG,HEX HEAD 3/8 IN.TUBE SIZE;AND ONE O-RING IN
BOLT CIRCLE DIAMETER7.187 INCHES NOMINAL IN
FLANGE DIAMETER8.688 INCHES NOMINAL IN
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-16113 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
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
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-068PC17-4IN?
2640-068PC17-4IN is a FLANGE,PIPE.
What parts can replace 2640-068PC17-4IN?
There are 18 known substitutes for 2640-068PC17-4IN: SS845-1889817, 15-97-0933, 15-97-0972 and 15 more. Substitute compatibility should be verified for your specific system.
Is 2640-068PC17-4IN still available?
2640-068PC17-4IN is currently cancelled.
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