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FA150-3/4IN — Technical Data Sheet

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— · 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 RETAINER AND ROLLERS,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 FASTENER, head_style: FLAT CHAMFER, head_height: 0.188 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.375 INCHES NOMINAL IN, fastener_length: 0.418 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-344-2457, 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
FA150-3/4IN
NSN: 4730-01-344-2457
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialSTEEL COMP 303 FASTENER
head_styleFLAT CHAMFER
head_height0.188 INCHES NOMINAL IN
thread_class2A A
thread_length0.375 INCHES NOMINAL IN
fastener_length0.418 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
special_featuresSPRING RETAINER CRES 17-7 PER MIL-S-25043
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.500 INCHES MINIMUM IN
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
NSN4730-01-344-2457
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FA150-3/4IN · 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 6
70242Interchangeable
interchangeable cross-reference
interchangeable
52589-1Interchangeable
interchangeable cross-reference
interchangeable
A1800Interchangeable
interchangeable cross-reference
interchangeable
H538-10-7Interchangeable
interchangeable cross-reference
interchangeable
52597-10-7Interchangeable
interchangeable cross-reference
interchangeable
GS553C20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FA150-3/4IN?
FA150-3/4IN is a RETAINER AND ROLLERS,BEARING.
What parts can replace FA150-3/4IN?
There are 6 known substitutes for FA150-3/4IN: 70242, 52589-1, A1800 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FA150-3/4IN?
FA150-3/4IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-344-2457. 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: September 2026