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691X8X4 — ELBOW,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

691X8X4: ELBOW,PIPE TO TUBE.

The ELBOW,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY ELBOW, flow_angle: 90.0 DEGREES, leg_length: 0.844 INCHES NOMINAL FIRST END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-131-7673, 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
691X8X4
NSN: 4730-01-131-7673
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY ELBOW
flow_angle90.0 DEGREES
leg_length0.844 INCHES NOMINAL FIRST END IN
seat_angle12.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
special_featuresUSED WITH PLASTIC OR SOFT METAL TUBING
nominal_thread_size0.250 INCHES SECOND END IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-01-131-7673
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 691X8X4 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE
•
FLOW ANGLE: 90.0 DEGREES
•
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
LEG LENGTH: 0.844 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE
FLOW ANGLE90.0 DEGREES
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
LEG LENGTH0.844 INCHES NOMINAL FIRST END IN
LEG LENGTH0.938 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 4
MPL90004-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MPL90004Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
169-P-8-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
269-P-0804Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 691X8X4?
691X8X4 is a ELBOW,PIPE TO TUBE.
What parts can replace 691X8X4?
There are 4 known substitutes for 691X8X4: MPL90004-14, MPL90004, 169-P-8-4 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 691X8X4?
691X8X4 is cataloged in the U.S. Government catalog under NSN 4730-01-131-7673. This indicates validated use in U.S. government and defense supply chains.
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