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5165169 ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNEF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-5453, 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
5165169
NSN: 4730-00-278-5453
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNEF
thread_directionRIGHT-HAND
length_to_shoulder0.281 INCHES NOMINAL IN
width_across_flats0.371 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
smallest_inside_diameter0.173 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
thread_quantity_per_inch32
nominal_tube_outside_diameter0.125 INCHES IN
NSN4730-00-278-5453
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5165169 · 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
•
THREAD CLASS: 3B
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
WIDTH ACROSS FLATS: 0.371 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
•
THREAD SERIES: UNEF
•
SMALLEST INSIDE DIAMETER: 0.173 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
•
NUT STYLE: TUBE COUPLING
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.312 INCHES IN
WIDTH ACROSS FLATS0.371 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
THREAD SERIESUNEF
SMALLEST INSIDE DIAMETER0.173 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
NUT STYLETUBE COUPLING
THREAD QUANTITY PER INCH32
NOMINAL TUBE OUTSIDE DIAMETER0.125 INCHES IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
012890Interchangeable
interchangeable cross-reference
interchangeable
12890Interchangeable
interchangeable cross-reference
interchangeable
5509Interchangeable
interchangeable cross-reference
interchangeable
AN780-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-6001Interchangeable
interchangeable cross-reference
interchangeable
3100994Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5165169?
5165169 is a BEARING,BALL,ANNULAR.
What parts can replace 5165169?
There are 23 known substitutes for 5165169: 012890, 12890, 5509 and 20 more. Substitute compatibility should be verified for your specific system.
Is 5165169 still available?
5165169 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026