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Technical Data Sheet
PartsTable / COMPONENT / PN CK-M5-PK-4
PN CK-M5-PK-4 ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: PLASTIC VIEWING END PROTECTIVE, overall_length: 5.000 INCHES NOMINAL IN, overall_diameter: 5.031 INCHES NOMINAL IN, fsc_application_data: TEST SET,ELECTRONIC EQUIPMENT, reliability_indicator: ESTABLISHED, mounting_configuration: SLIP FIT OVER 4.438 IN. DIA LIP 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 4730-01-549-7066, 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
PN CK-M5-PK-4
NSN: 4730-01-549-7066
FSC: 4730
CAGE: SBA21 — FESTO (PTY) LTD (ZAF)
SPECIFICATIONS
materialPLASTIC VIEWING END PROTECTIVE
overall_length5.000 INCHES NOMINAL IN
overall_diameter5.031 INCHES NOMINAL IN
fsc_application_dataTEST SET,ELECTRONIC EQUIPMENT
reliability_indicatorESTABLISHED
mounting_configurationSLIP FIT OVER 4.438 IN. DIA LIP IN
viewing_end_inside_length4.469 INCHES NOMINAL IN
attachment_end_inside_diameter4.469 INCHES NOMINAL IN
NSN4730-01-549-7066
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PN CK-M5-PK-4 · 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 15
3562Interchangeable
interchangeable cross-reference
interchangeable
AG179703Interchangeable
interchangeable cross-reference
interchangeable
179703-104Interchangeable
interchangeable cross-reference
interchangeable
9P39Interchangeable
interchangeable cross-reference
interchangeable
4906213Interchangeable
interchangeable cross-reference
interchangeable
DS932759Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PN CK-M5-PK-4?
PN CK-M5-PK-4 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace PN CK-M5-PK-4?
There are 15 known substitutes for PN CK-M5-PK-4: 3562, AG179703, 179703-104 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PN CK-M5-PK-4?
PN CK-M5-PK-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-549-7066. 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