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FC9977-189 — ADAPTER,STRAIGHT,SWIVEL FLANGE T

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

FC9977-189: ADAPTER,STRAIGHT,SWIVEL FLANGE T.

ADAPTER,STRAIGHT,SWIVEL FLANGE T. Key specifications include material: COPPER ALLOY FLANGE, flange_shape: ROUND WITH HOLES FIRST END, connection_style: GRIPPING NIPPLE (NOSE) SECOND END, nominal_thickness: 1.190 INCHES FIRST END IN, bolt_hole_quantity: 12 FIRST END, flange_face_design: RAISED WITH CURVE AND RADIUS FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-035-8971, 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
FC9977-189
NSN: 4730-00-035-8971
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY FLANGE
flange_shapeROUND WITH HOLES FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
nominal_thickness1.190 INCHES FIRST END IN
bolt_hole_quantity12 FIRST END
flange_face_designRAISED WITH CURVE AND RADIUS FIRST END
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length6.750 INCHES IN
nominal_outside_diameter10.120 INCHES FIRST END IN
bolt_hole_nominal_diameter0.690 INCHES FIRST END IN
raised_face_nominal_height0.015 INCHES FIRST END IN
NSN4730-00-035-8971
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC9977-189 · 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
•
FLANGE SHAPE: ROUND WITH HOLES FIRST END
•
FURNISHED ITEMS AND QUANTITY: 1 SEGMENTED HOSE SOCKET ASSEMBLY
•
FLANGE FACE DESIGN: RAISED WITH CURVE AND RADIUS FIRST END
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) SECOND END
•
BOLT CIRCLE NOMINAL DIAMETER: 8.880 INCHES FIRST END IN
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 6.000 INCHES SECOND END IN
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 6.880 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 6.750 INCHES IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES FIRST END
FURNISHED ITEMS AND QUANTITY1 SEGMENTED HOSE SOCKET ASSEMBLY
FLANGE FACE DESIGNRAISED WITH CURVE AND RADIUS FIRST END
CONNECTION STYLEGRIPPING NIPPLE (NOSE) SECOND END
BOLT CIRCLE NOMINAL DIAMETER8.880 INCHES FIRST END IN
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED6.000 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED6.880 INCHES SECOND END IN
NOMINAL OVERALL LENGTH6.750 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE FLANGE
BOLT HOLE NOMINAL DIAMETER0.690 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 9
EF-6-150/400FReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-24787/1-TYF-GPIX-96Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FC7750-9696-189Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-24787/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
FC7750-189Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-24787/1Reference document
Same NSN cross-reference
Reference document — Identification reference
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 FC9977-189?
FC9977-189 is a ADAPTER,STRAIGHT,SWIVEL FLANGE T.
What parts can replace FC9977-189?
There are 9 known substitutes for FC9977-189: EF-6-150/400F, MIL-F-24787/1-TYF-GPIX-96, FC7750-9696-189 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FC9977-189?
FC9977-189 is cataloged in the U.S. Government catalog under NSN 4730-00-035-8971. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.