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122798 ✓ 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 height: 0.615 INCHES NOMINAL IN, material: STEEL OVERALL, shank_length: 0.250 INCHES NOMINAL IN, special_features: SURFACE LOCATED BALL CHECK VALVE, style_designator: STRAIGHT, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-172-0034, 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
122798
NSN: 4730-00-172-0034
FSC: 4730
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
height0.615 INCHES NOMINAL IN
materialSTEEL OVERALL
shank_length0.250 INCHES NOMINAL IN
special_featuresSURFACE LOCATED BALL CHECK VALVE
style_designatorSTRAIGHT
surface_treatmentCADMIUM OVERALL
width_across_flats0.440 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
screw_thread_series_designatorNPT
NSN4730-00-172-0034
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 122798 · 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 31
5550Interchangeable
interchangeable cross-reference
interchangeable
5064-5004-09Interchangeable
interchangeable cross-reference
interchangeable
SM-B-587789Interchangeable
interchangeable cross-reference
interchangeable
700056Interchangeable
interchangeable cross-reference
interchangeable
FFS92Interchangeable
interchangeable cross-reference
interchangeable
P2332AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 122798?
122798 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 122798?
There are 31 known substitutes for 122798: 5550, 5064-5004-09, SM-B-587789 and 28 more. Substitute compatibility should be verified for your specific system.
Is 122798 still available?
122798 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