PartsTable
Technical Data Sheet
Download PDF

6502S1-250 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6502S1-250: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OR SILICON OVERALL, connection_type: GROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS, connection_style: CLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS, style_designator: COMPRESSION CLAMP TYPE (FLEXMASTER), surface_treatment: ZINC OR CADMIUM OVERALL, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-451-6686, 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
6502S1-250
NSN: 4730-00-451-6686
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL OR SILICON OVERALL
connection_typeGROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS
connection_styleCLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS
style_designatorCOMPRESSION CLAMP TYPE (FLEXMASTER)
surface_treatmentZINC OR CADMIUM OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_overall_length2.750 INCHES IN
furnished_items_and_quantity2 BOLT AND 2 LOCKNUT
nominal_coupling_size_accommodated1.250 INCHES ALL ENDS IN
material_document_and_classificationMIL-STD-130 MIL STD ALL MATERIAL RESPONSES OVERALL
NSN4730-00-451-6686
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6502S1-250 · 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
•
FURNISHED ITEMS AND QUANTITY: 2 BOLT AND 2 LOCKNUT
•
CONNECTION STYLE: CLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.750 INCHES IN
•
CONNECTION TYPE: GROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS
•
STYLE DESIGNATOR: COMPRESSION CLAMP TYPE (FLEXMASTER)
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-STD-130 MIL STD ALL MATERIAL RESPONSES OVERALL
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SURFACE TREATMENT: ZINC OR CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 BOLT AND 2 LOCKNUT
CONNECTION STYLECLAMPING W/ GASKET SEAL (TUBE) ALL ENDSCLAMPING W/ GASKET SEAL (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH2.750 INCHES IN
CONNECTION TYPEGROOVED COUPLING ALL ENDSGROOVED COUPLING ALL ENDS
STYLE DESIGNATORCOMPRESSION CLAMP TYPE (FLEXMASTER)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-130 MIL STD ALL MATERIAL RESPONSES OVERALL
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENTZINC OR CADMIUM OVERALL
NOMINAL COUPLING SIZE ACCOMMODATED1.250 INCHES ALL ENDS IN
MATERIALSTEEL OR SILICON OVERALL
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 2
NH1625S100B0250Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2587198Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 6502S1-250?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6502S1-250?
6502S1-250 is a COUPLING,TUBE.
What parts can replace 6502S1-250?
There are 2 known substitutes for 6502S1-250: NH1625S100B0250, 2587198. Substitute compatibility should be verified for your specific system.
What is the NSN for 6502S1-250?
6502S1-250 is cataloged in the U.S. Government catalog under NSN 4730-00-451-6686. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6502S1-250

✓ 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.