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PartsTable / COMPONENT / 803-7063850 ITEM 5
803-7063850 ITEM 5 ✓ 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 NUT,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, usage_design: EXTERNAL, special_features: MATERIAL DOCUMENTATION IS ASTM B61 WITH ALTERNATIVE MIL-F-1183J SUPP 1A A, end_item_identification: VALVE,SWING CHECK (1.5 IN) 803-1385721-71 IN, part_name_assigned_by_controlling_agency: RETAINER RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-723-1711, 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
803-7063850 ITEM 5
NSN: 4730-01-723-1711
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY
usage_designEXTERNAL
special_featuresMATERIAL DOCUMENTATION IS ASTM B61 WITH ALTERNATIVE MIL-F-1183J SUPP 1A A
end_item_identificationVALVE,SWING CHECK (1.5 IN) 803-1385721-71 IN
part_name_assigned_by_controlling_agencyRETAINER RING
NSN4730-01-723-1711
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 803-7063850 ITEM 5 · 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 10
C35823PC14-1INInterchangeable
interchangeable cross-reference
interchangeable
803-1385714-52-05Interchangeable
interchangeable cross-reference
interchangeable
A6689-129-222Interchangeable
interchangeable cross-reference
interchangeable
33100-D-360Interchangeable
interchangeable cross-reference
interchangeable
803-7063850Interchangeable
interchangeable cross-reference
interchangeable
803-7063850-C3X3-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-7063850 ITEM 5?
803-7063850 ITEM 5 is a NUT,UNION.
What parts can replace 803-7063850 ITEM 5?
There are 10 known substitutes for 803-7063850 ITEM 5: C35823PC14-1IN, 803-1385714-52-05, A6689-129-222 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-7063850 ITEM 5?
803-7063850 ITEM 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-723-1711. 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