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Technical Data Sheet
PartsTable / COMPONENT / 312504-50
312504-50 ✓ 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,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flow_angle: 45.0 DEGREES, leg_length: 2.281 INCHES NOMINAL FIRST END IN, thread_class: 2A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: GASKET SEAL, COMPRESSION (TUBE) ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-039-9836, 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
312504-50
NSN: 4730-01-039-9836
FSC: 4730
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flow_angle45.0 DEGREES
leg_length2.281 INCHES NOMINAL FIRST END IN
thread_class2A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGASKET SEAL, COMPRESSION (TUBE) ALL ENDS
nominal_thread_size0.625 INCHES ALL ENDS IN
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity2 LOCKNUT AND 2 PREFORMED PACKING AND 2 FLAT WASHER
nominal_outside_diameter_tube_accommodated0.375 INCHES ALL ENDS IN
NSN4730-01-039-9836
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 312504-50 · 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
•
THREAD SERIES DESIGNATOR: UNF FIRST END BULKHEAD
•
NOMINAL THREAD SIZE: 0.625 INCHES ALL ENDS IN
•
FURNISHED ITEMS AND QUANTITY: 2 LOCKNUT AND 2 PREFORMED PACKING AND 2 FLAT WASHER
•
LEG LENGTH: 1.000 INCHES NOMINAL SECOND END IN
•
CONNECTION STYLE: GASKET SEAL, COMPRESSION (TUBE) ALL ENDS
•
FLOW ANGLE: 45.0 DEGREES
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF FIRST END BULKHEAD
NOMINAL THREAD SIZE0.625 INCHES ALL ENDS IN
FURNISHED ITEMS AND QUANTITY2 LOCKNUT AND 2 PREFORMED PACKING AND 2 FLAT WASHER
NOMINAL THREAD SIZE0.625 INCHES FIRST END BULKHEAD IN
LEG LENGTH1.000 INCHES NOMINAL SECOND END IN
THREAD SERIES DESIGNATORUNF ALL ENDS
CONNECTION STYLEGASKET SEAL, COMPRESSION (TUBE) ALL ENDS
FLOW ANGLE45.0 DEGREES
LEG LENGTH2.281 INCHES NOMINAL FIRST END IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2449262Interchangeable
interchangeable cross-reference
interchangeable
9406Interchangeable
interchangeable cross-reference
interchangeable
562117-6Interchangeable
interchangeable cross-reference
interchangeable
2920137-6Interchangeable
interchangeable cross-reference
interchangeable
712060-012Interchangeable
interchangeable cross-reference
interchangeable
312504Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 312504-50?
312504-50 is a ELBOW,TUBE.
What parts can replace 312504-50?
There are 16 known substitutes for 312504-50: 2449262, 9406, 562117-6 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 312504-50?
312504-50 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-039-9836. 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