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Technical Data Sheet
PartsTable / COMPONENT / NC-03
NC-03 ✓ 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 SEAL NUT,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: PIPE SEAL NUT, nut_height: 0.266 INCHES NOMINAL IN, thread_series: NPT, furnished_items: PREFORMED PACKING, special_features: WEAPON SYSTEM ESSENTIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-030-2068, 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
NC-03
NSN: 4730-01-030-2068
FSC: 4730
CAGE: 64113 — SIGNAL-HILL CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_stylePIPE SEAL NUT
nut_height0.266 INCHES NOMINAL IN
thread_seriesNPT
furnished_itemsPREFORMED PACKING
special_featuresWEAPON SYSTEM ESSENTIAL
thread_directionRIGHT-HAND
width_across_flats0.875 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch18
criticality_code_justificationFEAT
NSN4730-01-030-2068
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: NC-03 · 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
•
MATERIAL: STEEL COMP 303 OVERALL
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
NUT STYLE: PIPE SEAL NUT
•
FURNISHED ITEMS: PREFORMED PACKING
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 18
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 303 OVERALL
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
NUT STYLEPIPE SEAL NUT
FURNISHED ITEMSPREFORMED PACKING
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
CRITICALITY CODE JUSTIFICATIONFEAT
NOMINAL THREAD SIZE0.375 INCHES IN
THREAD SERIESNPT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
11479629Interchangeable
interchangeable cross-reference
interchangeable
124603Interchangeable
interchangeable cross-reference
interchangeable
TSE02-50Interchangeable
interchangeable cross-reference
interchangeable
124586Interchangeable
interchangeable cross-reference
interchangeable
102-102DInterchangeable
interchangeable cross-reference
interchangeable
76-831Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NC-03?
NC-03 is a SEAL NUT,PIPE.
What parts can replace NC-03?
There are 8 known substitutes for NC-03: 11479629, 124603, TSE02-50 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NC-03?
NC-03 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-030-2068. 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