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475278 — INSULATOR,PLATE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

475278: INSULATOR,PLATE.

The INSULATOR,PLATE is a the manufacturer industrial component. Key specifications include overall_width: 3.250 INCHES NOMINAL IN, overall_height: 0.064 INCHES NOMINAL IN, overall_length: 6.370 INCHES NOMINAL IN, special_features: 4 HOLES 0.196 IN. DIA IN, material_document_and_classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 4730-00-956-5258, 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
475278
NSN: 4730-00-956-5258
NIINs: 009565258, 010293777
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE SEBACAMIDE OR PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
overall_width3.250 INCHES NOMINAL IN
overall_height0.064 INCHES NOMINAL IN
overall_length6.370 INCHES NOMINAL IN
special_features4 HOLES 0.196 IN. DIA IN
material_document_and_classificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-956-5258
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 475278 · 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
SUBSTITUTES & CROSS-REFERENCES 1
505103Same 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 475278?
475278 is a INSULATOR,PLATE.
What parts can replace 475278?
There is 1 known substitute for 475278: 505103. Substitute compatibility should be verified for your specific system.
What is the NSN for 475278?
475278 is cataloged in the U.S. Government catalog under NSN 4730-00-956-5258. 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.