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PartsTable / COMPONENT / 20831-4
20831-4 ✓ 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 component_quantity: 14. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-196-1506, 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
20831-4
NSN: 4730-00-196-1506
FSC: 4730
CAGE: 68225 — KARL SENNER, L.L.C. DBA KARL SENNER INC (USA)
SPECIFICATIONS
component_quantity14
NSN4730-00-196-1506
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20831-4 · 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 OVERALL
•
STYLE DESIGNATOR: SHORT
•
NOMINAL OVERALL LENGTH: 2.000 INCHES IN
•
NOMINAL THREAD SIZE: 1.000 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STYLE DESIGNATORSHORT
SPECIAL FEATURESGRUMMAN AEROSPACE A-10 AIRCRAFT
NOMINAL OVERALL LENGTH2.000 INCHES IN
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORSHORT
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
3-4NPC59Interchangeable
interchangeable cross-reference
interchangeable
3-4WPC59Interchangeable
interchangeable cross-reference
interchangeable
2-1MALT1PC59Interchangeable
interchangeable cross-reference
interchangeable
208314Interchangeable
interchangeable cross-reference
interchangeable
2-675Interchangeable
interchangeable cross-reference
interchangeable
10458Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20831-4?
20831-4 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 20831-4?
There are 26 known substitutes for 20831-4: 3-4NPC59, 3-4WPC59, 2-1MALT1PC59 and 23 more. Substitute compatibility should be verified for your specific system.
Is 20831-4 still available?
20831-4 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