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6508E50FN270 — EXPANSION JOINT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6508E50FN270: EXPANSION JOINT,PIPE.

The EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYESTER AND RUBBER SYNTHETIC FLANGE, joint_type: SINGLE, design_type: DIAPHRAGM, overall_length: 21.060 INCHES NOMINAL IN, special_features: STEEL,ZINK COATED RETAINING RING PROVIDED, bolt_hole_diameter: 0.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-345-4087, 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
6508E50FN270
NSN: 4730-01-345-4087
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialPLASTIC POLYESTER AND RUBBER SYNTHETIC FLANGE
joint_typeSINGLE
design_typeDIAPHRAGM
overall_length21.060 INCHES NOMINAL IN
special_featuresSTEEL,ZINK COATED RETAINING RING PROVIDED
bolt_hole_diameter0.562 INCHES NOMINAL IN
bolt_hole_quantity24
end_connection_typeFLANGED
bolt_circle_diameter20.000 INCHES NOMINAL IN
traverse_maximum_length3.000 INCHES IN
nominal_pipe_size_designation17.000 INCHES IN
NSN4730-01-345-4087
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6508E50FN270 · 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
•
NOMINAL PIPE SIZE DESIGNATION: 17.000 INCHES IN
•
DESIGN TYPE: DIAPHRAGM
•
END CONNECTION TYPE: FLANGED
•
TRAVERSE MAXIMUM LENGTH: 3.000 INCHES IN
•
BOLT HOLE DIAMETER: 0.562 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 24
•
BOLT CIRCLE DIAMETER: 20.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION17.000 INCHES IN
DESIGN TYPEDIAPHRAGM
END CONNECTION TYPEFLANGED
TRAVERSE MAXIMUM LENGTH3.000 INCHES IN
BOLT HOLE DIAMETER0.562 INCHES NOMINAL IN
OVERALL LENGTH21.060 INCHES NOMINAL IN
BOLT HOLE QUANTITY24
BOLT CIRCLE DIAMETER20.000 INCHES NOMINAL IN
SPECIAL FEATURESSTEEL,ZINK COATED RETAINING RING PROVIDED
MATERIALPLASTIC POLYESTER AND RUBBER SYNTHETIC FLANGE
SUBSTITUTES & CROSS-REFERENCES 3
1D41390Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
1129E01 FIND 61Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1129E01Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6508E50FN270?
6508E50FN270 is a EXPANSION JOINT,PIPE.
What parts can replace 6508E50FN270?
There are 3 known substitutes for 6508E50FN270: 1D41390, 1129E01 FIND 61, 1129E01. Substitute compatibility should be verified for your specific system.
What is the NSN for 6508E50FN270?
6508E50FN270 is cataloged in the U.S. Government catalog under NSN 4730-01-345-4087. 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.