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420100E1 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

420100E1: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nominal_width: 5.500 INCHES ALL ENDS IN, special_features: USED IN COMPRESSOR CTFL; INSIDE DIAMETER: 13.750; OUTSIDE DIAMETER: 14.938, material_document_and_classification: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-498-5085, 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
420100E1
NSN: 4730-01-498-5085
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nominal_width5.500 INCHES ALL ENDS IN
special_featuresUSED IN COMPRESSOR CTFL; INSIDE DIAMETER: 13.750; OUTSIDE DIAMETER: 14.938
material_document_and_classificationMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-498-5085
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 420100E1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL WIDTH: 5.500 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESUSED IN COMPRESSOR CTFL; INSIDE DIAMETER: 13.750; OUTSIDE DIAMETER: 14.938
NOMINAL WIDTH5.500 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
12493474Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
005CReference document
Same NSN cross-reference
Reference document — Design control — primary reference
PL12498531 PC NO 5Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 420100E1?
420100E1 is a COUPLING,TUBE.
What parts can replace 420100E1?
There are 3 known substitutes for 420100E1: 12493474, 005C, PL12498531 PC NO 5. Substitute compatibility should be verified for your specific system.
What is the NSN for 420100E1?
420100E1 is cataloged in the U.S. Government catalog under NSN 4730-01-498-5085. 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.