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Technical Data Sheet
PartsTable / COMPONENT / T12(.250)-B
T12(.250)-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 T12(.250)-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 4730-00-771-5307, 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
T12(.250)-B
NSN: 4730-00-771-5307
FSC: 4730
CAGE: 57853 — A. F. BROCK & CO. DBA A. F. BROCK & CO. / PH, INC (USA)
SPECIFICATIONS
Part NumberT12(.250)-B
NSN4730-00-771-5307
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: T12(.250)-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
•
STYLE DESIGNATOR: SERRATED
•
FLANGE OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSERRATED
FLANGE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
8154Interchangeable
interchangeable cross-reference
interchangeable
B7202Interchangeable
interchangeable cross-reference
interchangeable
B8154Interchangeable
interchangeable cross-reference
interchangeable
733B649P1Interchangeable
interchangeable cross-reference
interchangeable
272-1024PT3Interchangeable
interchangeable cross-reference
interchangeable
D15-460MPC269-270Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T12(.250)-B?
T12(.250)-B is a T12(.250)-B.
What parts can replace T12(.250)-B?
There are 13 known substitutes for T12(.250)-B: 8154, B7202, B8154 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T12(.250)-B?
T12(.250)-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-771-5307. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026