PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4(.188)T23UI-B
4(.188)T23UI-B ✓ 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 4(.188)T23UI-B is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-771-5313, 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
4(.188)T23UI-B
NSN: 4730-00-771-5313
FSC: 4730
CAGE: 57853 — A. F. BROCK & CO. DBA A. F. BROCK & CO. / PH, INC (USA)
SPECIFICATIONS
Part Number4(.188)T23UI-B
NSN4730-00-771-5313
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4(.188)T23UI-B · 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
•
CASEHARDENING INDICATOR: CASEHARDENED
•
STYLE DESIGNATOR: PLAIN
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORCASEHARDENED
STYLE DESIGNATORPLAIN
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
2373-478PCR3Interchangeable
interchangeable cross-reference
interchangeable
2100-158741PC21Interchangeable
interchangeable cross-reference
interchangeable
2100-811749PC21Interchangeable
interchangeable cross-reference
interchangeable
80374-1Interchangeable
interchangeable cross-reference
interchangeable
10342Interchangeable
interchangeable cross-reference
interchangeable
10342-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 4(.188)T23UI-B?
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 4(.188)T23UI-B?
4(.188)T23UI-B is a 4(.188)T23UI-B.
What parts can replace 4(.188)T23UI-B?
There are 19 known substitutes for 4(.188)T23UI-B: 2373-478PCR3, 2100-158741PC21, 2100-811749PC21 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4(.188)T23UI-B?
4(.188)T23UI-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-771-5313. 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 — 4(.188)T23UI-B

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