PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 263-556
263-556 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The PLUG,TUBE REPAIR,EXPANDING is a the manufacturer industrial component. Key specifications include width: 11.000 INCHES NOMINAL IN, length: 17.000 INCHES NOMINAL IN, usage_form: SHEET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-390-1471, 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
263-556
NSN: 4730-01-390-1471
FSC: 4730
CAGE: 95119 — PAULIN H AND CO LTDA DIVISION OF THE HILLMAN GROUP CANADA ULC (CAN)
SPECIFICATIONS
width11.000 INCHES NOMINAL IN
length17.000 INCHES NOMINAL IN
usage_formSHEET
NSN4730-01-390-1471
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 263-556 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
BS11110291Interchangeable
interchangeable cross-reference
interchangeable
400728Interchangeable
interchangeable cross-reference
interchangeable
7705Interchangeable
interchangeable cross-reference
interchangeable
405KDInterchangeable
interchangeable cross-reference
interchangeable
FFB171/06J05B2EInterchangeable
interchangeable cross-reference
interchangeable
3-20A CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 263-556?
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 263-556?
263-556 is a PLUG,TUBE REPAIR,EXPANDING.
What parts can replace 263-556?
There are 18 known substitutes for 263-556: BS11110291, 400728, 7705 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 263-556?
263-556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-390-1471. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 263-556

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026