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6898808 — ADAPTER,STRAIGHT,FLANGE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6898808: ADAPTER,STRAIGHT,FLANGE TO TUBE.

ADAPTER,STRAIGHT,FLANGE TO TUBE. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_shape: OVAL WITH HOLES ALL ENDS, nominal_width: 0.994 INCHES ALL ENDS IN, nominal_length: 1.550 INCHES ALL ENDS IN, connection_type: FLANGE ALL ENDS, nominal_thickness: 0.068 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-421-0135, 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
6898808
NSN: 4730-01-421-0135
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_shapeOVAL WITH HOLES ALL ENDS
nominal_width0.994 INCHES ALL ENDS IN
nominal_length1.550 INCHES ALL ENDS IN
connection_typeFLANGE ALL ENDS
nominal_thickness0.068 INCHES ALL ENDS IN
bolt_hole_quantity2 ALL ENDS
flange_face_designPLAIN ALL ENDS
end_item_identification2840013332064,HELICOPTER OBSERVATION (AHIP) OH-58D.
bolt_hole_nominal_diameter0.225 INCHES ALL ENDS IN
bolt_circle_nominal_diameter1.750 INCHES ALL ENDS IN
NSN4730-01-421-0135
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6898808 · 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: OVAL WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
NOMINAL LENGTH: 1.550 INCHES ALL ENDS IN
•
BOLT CIRCLE NOMINAL DIAMETER: 1.750 INCHES ALL ENDS IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.225 INCHES ALL ENDS IN
•
BOLT HOLE QUANTITY: 2 ALL ENDS
•
NOMINAL WIDTH: 0.994 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPEOVAL WITH HOLES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
NOMINAL LENGTH1.550 INCHES ALL ENDS IN
BOLT CIRCLE NOMINAL DIAMETER1.750 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.225 INCHES ALL ENDS IN
BOLT HOLE QUANTITY2 ALL ENDS
NOMINAL WIDTH0.994 INCHES ALL ENDS IN
END ITEM IDENTIFICATION2840013332064,HELICOPTER OBSERVATION (AHIP) OH-58D.
MATERIALSTEEL CORROSION RESISTING OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 6898808?
6898808 is a ADAPTER,STRAIGHT,FLANGE TO TUBE.
What is the NSN for 6898808?
6898808 is cataloged in the U.S. Government catalog under NSN 4730-01-421-0135. 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.