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7M891-1 — COUPLING ASSEMBLY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M891-1: COUPLING ASSEMBLY,TUBE.

The COUPLING ASSEMBLY,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, end_item_identification: F15 AIRCRAFTF15 AIRCRAFT, part_name_assigned_by_controlling_agency: CONNECTOR ASSEMBLY,WING FUELCONNECTOR ASSEMBLY,WING FUEL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-494-1135, 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
7M891-1
NSN: 4730-00-494-1135
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 83533 — ESSEX INDUSTRIES INC DIV MANUFACTURING DIVISION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
end_item_identificationF15 AIRCRAFTF15 AIRCRAFT
part_name_assigned_by_controlling_agencyCONNECTOR ASSEMBLY,WING FUELCONNECTOR ASSEMBLY,WING FUEL
NSN4730-00-494-1135
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M891-1 · 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
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESASSEMBLY P/N 7M891-1 HAS FOLLOWING PARTS: DRIVE SCREW 4,SEAL RETAINER 1, SCREW 4, INSERT 4, F4-15 INSERT 10, NAME PLATE 1, SEAL 1,BODY 1, SPRING 1, POPPET 1, WASHER 1, F1-16 INSERT 1, 3-6 SCREW 1, CAP 1, C20 LOCKWIRE AR, AND 0-RING 1ASSEMBLY P/N 7M891-1 HAS FOLLOWING PARTS: DRIVE SCREW 4,SEAL RETAINER 1, SCREW 4, INSERT 4, F4-15 INSERT 10, NAME PLATE 1, SEAL 1,BODY 1, SPRING 1, POPPET 1, WASHER 1, F1-16 INSERT 1, 3-6 SCREW 1, CAP 1, C20 LOCKWIRE AR, AND 0-RING 1
PART NAME ASSIGNED BY CONTROLLING AGENCYCONNECTOR ASSEMBLY,WING FUELCONNECTOR ASSEMBLY,WING FUEL
END ITEM IDENTIFICATIONF15 AIRCRAFTF15 AIRCRAFT
MATERIALALUMINUM ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
68B580116-103Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M891-1?
7M891-1 is a COUPLING ASSEMBLY,TUBE.
What parts can replace 7M891-1?
There is 1 known substitute for 7M891-1: 68B580116-103. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M891-1?
7M891-1 is cataloged in the U.S. Government catalog under NSN 4730-00-494-1135. 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.