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121863 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include end_item_identification: 3810015490465 CRANE,WHEEL MOUNTED,HYDRAULIC,LIGHT,7.5 TON, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-511-1677, 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
121863
NSN: 4730-00-511-1677
FSC: 4730
CAGE: Z4732 — HAULMARK TRAILERS (AUSTRALIA) PTY LTD (AUS)
SPECIFICATIONS
end_item_identification3810015490465 CRANE,WHEEL MOUNTED,HYDRAULIC,LIGHT,7.5 TON
part_name_assigned_by_controlling_agencyO-RING
NSN4730-00-511-1677
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 121863 · 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 26
2068846Interchangeable
interchangeable cross-reference
interchangeable
745Interchangeable
interchangeable cross-reference
interchangeable
46-2CHC0Interchangeable
interchangeable cross-reference
interchangeable
37-1C91-20Interchangeable
interchangeable cross-reference
interchangeable
10307Interchangeable
interchangeable cross-reference
interchangeable
SC-C-69992-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121863?
121863 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 121863?
There are 26 known substitutes for 121863: 2068846, 745, 46-2CHC0 and 23 more. Substitute compatibility should be verified for your specific system.
Is 121863 still available?
121863 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026