PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 520-3891
520-3891 ✓ 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 ELBOW,SWIVEL FLANGE TO HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, body_style: W/MTG BRACKET, TERMINAL(S) ON ONE END, ring_style: SPECIAL, seat_angle: 45.0 DEGREES SECOND END, body_length: 1.594 INCHES NOMINAL IN, temp_rating: 150.0 CELSIUS DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-465-2448, 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
520-3891
NSN: 4730-01-465-2448
FSC: 4730
CAGE: 0K6N1 — CORR TECH INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
body_styleW/MTG BRACKET, TERMINAL(S) ON ONE END
ring_styleSPECIAL
seat_angle45.0 DEGREES SECOND END
body_length1.594 INCHES NOMINAL IN
temp_rating150.0 CELSIUS DEGC
thread_class1A SECOND END A
usage_designEXTERNAL
body_diameter1.000 INCHES NOMINAL IN
hole_diameter0.343 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.500 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL TUBE FIRST END
NSN4730-01-465-2448
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 520-3891 · 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 13
KZ499Interchangeable
interchangeable cross-reference
interchangeable
1057835Interchangeable
interchangeable cross-reference
interchangeable
GL42Interchangeable
interchangeable cross-reference
interchangeable
11042Interchangeable
interchangeable cross-reference
interchangeable
2810L20-031Interchangeable
interchangeable cross-reference
interchangeable
139662-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 520-3891?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 520-3891?
520-3891 is a ELBOW,SWIVEL FLANGE TO HOSE.
What parts can replace 520-3891?
There are 13 known substitutes for 520-3891: KZ499, 1057835, GL42 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 520-3891?
520-3891 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-465-2448. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 520-3891

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026