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K-500-CH-1989 — 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 height: 0.641 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.260 INCHES NOMINAL IN, special_features: SURFACE LOCATED BALL CHECK VALVE AT TOP, style_designator: STRAIGHT, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-151-5622, 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
K-500-CH-1989
NSN: 4730-01-151-5622
FSC: 4730
CAGE: 59556 — KOVATCH CORP. (USA)
SPECIFICATIONS
height0.641 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.260 INCHES NOMINAL IN
special_featuresSURFACE LOCATED BALL CHECK VALVE AT TOP
style_designatorSTRAIGHT
surface_treatmentZINC OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
screw_thread_series_designatorNPT
NSN4730-01-151-5622
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: K-500-CH-1989 · 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
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
HEIGHT: 0.641 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.125 INCHES IN
SCREW THREAD SERIES DESIGNATORNPT
SPECIAL FEATURESSURFACE LOCATED BALL CHECK VALVE AT TOP
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
HEIGHT0.641 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT
SHANK LENGTH0.260 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1988InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M970-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1761-07InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
72518InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3935AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SK205-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K-500-CH-1989?
K-500-CH-1989 is a FITTING,LUBRICATION.
What parts can replace K-500-CH-1989?
There are 18 known substitutes for K-500-CH-1989: 1988, M970-7, 1761-07 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K-500-CH-1989?
K-500-CH-1989 is cataloged in the Federal Logistics Information System under NSN 4730-01-151-5622. 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