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Technical Data Sheet
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1688CY — 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 FITTING,LUBRICATION is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES, height: 0.875 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.594 INCHES NOMINAL IN, thread_class: 2A A, style_designator: ANGLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-010-0200, 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
1688CY
NSN: 4730-01-010-0200
FSC: 4730
CAGE: 0FKM1 — ALEMITE, LLC DBA SKF USA INC. (USA)
SPECIFICATIONS
angle45.0 DEGREES
height0.875 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.594 INCHES NOMINAL IN
thread_class2A A
style_designatorANGLE
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch28
assembly_clearance_radius0.250 INCHES NOMINAL IN
screw_thread_series_designatorUNF
NSN4730-01-010-0200
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1688CY · 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: 0.875 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
THREAD QUANTITY PER INCH: 28
•
ANGLE: 45.0 DEGREES
•
ASSEMBLY CLEARANCE RADIUS: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ANGLE
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
HEIGHT0.875 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.125 INCHES IN
SCREW THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28
ANGLE45.0 DEGREES
ASSEMBLY CLEARANCE RADIUS0.250 INCHES NOMINAL IN
STYLE DESIGNATORANGLE
MATERIALSTEEL OVERALL
SHANK LENGTH0.594 INCHES NOMINAL IN
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
9150692InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AA50202InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
630AS140InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
844-055-002InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B688InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1688CY?
1688CY is a FITTING,LUBRICATION.
What parts can replace 1688CY?
There are 5 known substitutes for 1688CY: 9150692, AA50202, 630AS140 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1688CY?
1688CY is cataloged in the Federal Logistics Information System under NSN 4730-01-010-0200. 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: October 2026