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691X8 — EVAPORATOR COIL,REFRIGERATION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

691X8: EVAPORATOR COIL,REFRIGERATION.

The EVAPORATOR COIL,REFRIGERATION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.125 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-271-7958, 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
691X8
NSN: 4730-01-271-7958
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle90.0 DEGREES
leg_length1.125 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.375 INCHES SECOND END IN
thread_quantity_per_inchA20 FIRST END
thread_series_designatorNPT SECOND END
furnished_items_and_quantity1 SHORT COUPLING NUT WITH SLEEVE
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-01-271-7958
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 691X8 · 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 SHORT COUPLING NUT WITH 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: 0.938 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 SHORT COUPLING NUT WITH 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 LENGTH0.938 INCHES NOMINAL FIRST END IN
LEG LENGTH1.125 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.688 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 2
0204-600-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0204-600Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 691X8?
691X8 is a EVAPORATOR COIL,REFRIGERATION.
What parts can replace 691X8?
There are 2 known substitutes for 691X8: 0204-600-10, 0204-600. Substitute compatibility should be verified for your specific system.
What is the NSN for 691X8?
691X8 is cataloged in the U.S. Government catalog under NSN 4730-01-271-7958. This indicates validated use in U.S. government and defense supply chains.
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