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2642-643-11 — SPACER,FLEXIBLE,PIPELINE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2642-643-11: SPACER,FLEXIBLE,PIPELINE.

The SPACER,FLEXIBLE,PIPELINE is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, thickness: 0.200 INCHES NOMINAL IN, body_length: 2.100 INCHES NOMINAL IN, flexibility: FLEXIBLE, inside_width: 4.000 INCHES NOMINAL IN, flange_height: 1.350 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-128-1523, 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
2642-643-11
NSN: 4730-01-128-1523
NIINs: 011281523, 011283069, 011283952, 011297995, 011304808, 011305674, 011305681, 011305682, 011305683, 011305684, 011306449, 011313925, 011316298, 011317901, 011353934, 011357701, 011391926, 011415176, 011417836, 011478031, 011481489, 011481490, 011482973, 011488356, 011497989, 011497990, 011564918, 011564920, 011579666, 011581899, 011591016, 011605952, 011620285, 011624440, 011624441, 011624442, 011627152, 011627153, 011627154, 011638646, 011638647, 011664510, 011668943, 011687625, 011692736, 011728237, 011737758, 011749593, 011773509, 011792647, 011810110, 011882227, 011995886, 011995889, 011998190
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
thickness0.200 INCHES NOMINAL IN
body_length2.100 INCHES NOMINAL IN
flexibilityFLEXIBLE
inside_width4.000 INCHES NOMINAL IN
flange_height1.350 INCHES NOMINAL IN
inside_length12.000 INCHES NOMINAL IN
outside_width17.000 INCHES NOMINAL IN
exterior_colorBLACK
overall_length12.700 INCHES NOMINAL IN
inside_diameter2.800 INCHES NOMINAL IN
flange_thickness0.200 INCHES NOMINAL IN
NSN4730-01-128-1523
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2642-643-11 · 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
•
INSIDE WIDTH: 6.000 INCHES NOMINAL IN
•
INSIDE LENGTH: 9.000 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.200 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECTANGULAR
•
BODY LENGTH: 2.100 INCHES NOMINAL IN
•
OUTSIDE WIDTH: 8.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
INSIDE WIDTH6.000 INCHES NOMINAL IN
INSIDE LENGTH9.000 INCHES NOMINAL IN
FLANGE THICKNESS0.200 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
OVERALL LENGTH11.250 INCHES NOMINAL IN
BODY LENGTH2.100 INCHES NOMINAL IN
OUTSIDE WIDTH8.250 INCHES NOMINAL IN
SPECIAL FEATURESW/TWO STAINLESS STEEL 304 BACKUP PLATES
MATERIALRUBBER SYNTHETIC
FABRICATION METHODMOLDED
SUBSTITUTES & CROSS-REFERENCES 4
501-4788759F91Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
845-4675606Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
4788759-0F91Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
501-4788759Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 2642-643-11?
2642-643-11 is a SPACER,FLEXIBLE,PIPELINE.
What parts can replace 2642-643-11?
There are 4 known substitutes for 2642-643-11: 501-4788759F91, 845-4675606, 4788759-0F91 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2642-643-11?
2642-643-11 is cataloged in the U.S. Government catalog under NSN 4730-01-128-1523. 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.