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PartsTable / COMPONENT / B-145-9
B-145-9 ✓ 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 FITTING,LUBRICATION is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES, height: 0.640 INCHES NOMINAL IN, length: 6.000 FEET NOMINAL FT, material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR, shank_length: 0.240 INCHES NOMINAL IN, special_features: SURFACE LOCATED BALL CHECK VALVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-850-1381, 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
B-145-9
NSN: 4730-00-850-1381
FSC: 4730
CAGE: 54713 — EATON CORP (USA)
SPECIFICATIONS
angle45.0 DEGREES
height0.640 INCHES NOMINAL IN
length6.000 FEET NOMINAL FT
materialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
shank_length0.240 INCHES NOMINAL IN
special_featuresSURFACE LOCATED BALL CHECK VALVE
style_designatorANGLE
surface_treatmentCADMIUM AND ZINC OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
assembly_clearance_radius0.460 INCHES NOMINAL IN
nonmetallic_hardness_rating30.0 NOMINAL SHORE DUROMETER A
NSN4730-00-850-1381
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B-145-9 · 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
•
HEIGHT: 0.640 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
ASSEMBLY CLEARANCE RADIUS: 0.460 INCHES NOMINAL IN
•
ANGLE: 45.0 DEGREES
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
STYLE DESIGNATOR: ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSURFACE LOCATED BALL CHECK VALVE
HEIGHT0.640 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.125 INCHES IN
ASSEMBLY CLEARANCE RADIUS0.460 INCHES NOMINAL IN
ANGLE45.0 DEGREES
SCREW THREAD SERIES DESIGNATORNPT
STYLE DESIGNATORANGLE
MATERIALSTEEL OVERALL
SHANK LENGTH0.240 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
8200-15Interchangeable
interchangeable cross-reference
interchangeable
W002158Interchangeable
interchangeable cross-reference
interchangeable
723898-001Interchangeable
interchangeable cross-reference
interchangeable
B-145-9Interchangeable
interchangeable cross-reference
interchangeable
407CInterchangeable
interchangeable cross-reference
interchangeable
B-145-18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-145-9?
B-145-9 is a FITTING,LUBRICATION.
What parts can replace B-145-9?
There are 8 known substitutes for B-145-9: 8200-15, W002158, 723898-001 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-145-9?
B-145-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-850-1381. 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