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A-400-R1-4 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A-400-R1-4: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include special_features: 3 BOLTS: 9/16",5/8" HEX, 5/8" HEX, special_test_features: PANEL HOLES SIZE IS 29/64", MAXIMUM PANEL THICKNESS: 0.40", nominal_overall_length: 2.20 INCHES IN, end_item_identification: A10, nominal_outside_diameter: 0.250 INCHES FIRST END IN, reduced_passage_nominal_inside_diameter: 0.170 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-230-6595, 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
A-400-R1-4
NSN: 4730-01-230-6595
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
special_features3 BOLTS: 9/16",5/8" HEX, 5/8" HEX
special_test_featuresPANEL HOLES SIZE IS 29/64", MAXIMUM PANEL THICKNESS: 0.40"
nominal_overall_length2.20 INCHES IN
end_item_identificationA10
nominal_outside_diameter0.250 INCHES FIRST END IN
reduced_passage_nominal_inside_diameter0.170 INCHES FIRST END IN
part_name_assigned_by_controlling_agencyBULKHEAD REDUCER
NSN4730-01-230-6595
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A-400-R1-4 · 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
•
SPECIAL TEST FEATURES: PANEL HOLES SIZE IS 29/64", MAXIMUM PANEL THICKNESS: 0.40"
•
NOMINAL OVERALL LENGTH: 2.20 INCHES IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.170 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SPECIAL TEST FEATURESPANEL HOLES SIZE IS 29/64", MAXIMUM PANEL THICKNESS: 0.40"
NOMINAL OVERALL LENGTH2.20 INCHES IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.170 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER0.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER0.250 INCHES SECOND END IN
SPECIAL FEATURES3 BOLTS: 9/16",5/8" HEX, 5/8" HEX
PART NAME ASSIGNED BY CONTROLLING AGENCYBULKHEAD REDUCER
END ITEM IDENTIFICATIONA10
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
4-4 T2H2BZ-A-Z6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 A-400-R1-4?
A-400-R1-4 is a COUPLING,TUBE.
What parts can replace A-400-R1-4?
There is 1 known substitute for A-400-R1-4: 4-4 T2H2BZ-A-Z6. Substitute compatibility should be verified for your specific system.
What is the NSN for A-400-R1-4?
A-400-R1-4 is cataloged in the U.S. Government catalog under NSN 4730-01-230-6595. This indicates validated use in U.S. government and defense supply chains.
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