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77643-55X13PC5 — SPACER,FLEXIBLE,PIPELINE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

77643-55X13PC5: SPACER,FLEXIBLE,PIPELINE.

The SPACER,FLEXIBLE,PIPELINE is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, thickness: 0.150 INCHES NOMINAL IN, body_length: 2.125 INCHES NOMINAL IN, flange_height: 2.125 INCHES MINIMUM AND 2.734 INCHES MAXIMUM IN, inside_diameter: 14.500 INCHES NOMINAL IN, flange_thickness: 0.190 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-936-8178, 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
77643-55X13PC5
NSN: 4730-00-936-8178
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
thickness0.150 INCHES NOMINAL IN
body_length2.125 INCHES NOMINAL IN
flange_height2.125 INCHES MINIMUM AND 2.734 INCHES MAXIMUM IN
inside_diameter14.500 INCHES NOMINAL IN
flange_thickness0.190 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
outside_diameter17.750 INCHES MINIMUM AND 17.930 INCHES MAXIMUM IN
style_designatorROUND
fabrication_methodMOLDED
material_document_and_classificationMIL-R-6855, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
NSN4730-00-936-8178
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 77643-55X13PC5 · 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
•
FLANGE THICKNESS: 0.190 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 17.750 INCHES MINIMUM AND 17.930 INCHES MAXIMUM IN
•
BODY LENGTH: 2.125 INCHES NOMINAL IN
•
INSIDE DIAMETER: 14.500 INCHES NOMINAL IN
•
FLANGE HEIGHT: 2.125 INCHES MINIMUM AND 2.734 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.190 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
STYLE DESIGNATORROUND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER17.750 INCHES MINIMUM AND 17.930 INCHES MAXIMUM IN
BODY LENGTH2.125 INCHES NOMINAL IN
INSIDE DIAMETER14.500 INCHES NOMINAL IN
FLANGE HEIGHT2.125 INCHES MINIMUM AND 2.734 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
FABRICATION METHODMOLDED
THICKNESS0.150 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
725-8669PC5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77643-55X13PC5?
77643-55X13PC5 is a SPACER,FLEXIBLE,PIPELINE.
What parts can replace 77643-55X13PC5?
There is 1 known substitute for 77643-55X13PC5: 725-8669PC5. Substitute compatibility should be verified for your specific system.
What is the NSN for 77643-55X13PC5?
77643-55X13PC5 is cataloged in the U.S. Government catalog under NSN 4730-00-936-8178. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.