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NK3029-1 ✓ 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 PACKING NUT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thread_size: 1-14, thread_class: 2A A, thread_length: 0.312 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN, overall_length: 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN, style_designator: HEXAGON, EXTERNAL THREAD, BOSS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-141-1594, 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
NK3029-1
NSN: 4730-01-141-1594
FSC: 4730
CAGE: 93591 — PENTAIR VALVES & CONTROLS US LP DIV FLOW CONTROL US HOLDING CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thread_size1-14
thread_class2A A
thread_length0.312 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
overall_length0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
style_designatorHEXAGON, EXTERNAL THREAD, BOSS
thread_directionRIGHT-HAND
width_across_flats0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
screw_thread_locationEXTERNAL
casehardening_indicatorNOT CASEHARDENED
smallest_inside_diameter0.656 INCHES NOMINAL IN
screw_thread_series_designatorUNS
NSN4730-01-141-1594
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: NK3029-1 · 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 DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: HEXAGON, EXTERNAL THREAD, BOSS
•
WIDTH ACROSS FLATS: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
•
SCREW THREAD LOCATION: EXTERNAL
•
SMALLEST INSIDE DIAMETER: 0.656 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATORHEXAGON, EXTERNAL THREAD, BOSS
WIDTH ACROSS FLATS0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
SCREW THREAD LOCATIONEXTERNAL
SMALLEST INSIDE DIAMETER0.656 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
OVERALL LENGTH0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD LENGTH0.312 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
THREAD SIZE1-14
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
S-115Interchangeable
interchangeable cross-reference
interchangeable
200RB4P3T 115-230VACInterchangeable
interchangeable cross-reference
interchangeable
18892Interchangeable
interchangeable cross-reference
interchangeable
200RB4P3T-AMG-120-240VACInterchangeable
interchangeable cross-reference
interchangeable
200RB4P3T-120/240-50/60AMGInterchangeable
interchangeable cross-reference
interchangeable
200R4P3T120-240-50-60BGGInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NK3029-1?
NK3029-1 is a PACKING NUT.
What parts can replace NK3029-1?
There are 16 known substitutes for NK3029-1: S-115, 200RB4P3T 115-230VAC, 18892 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NK3029-1?
NK3029-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-141-1594. 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