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679747 — HOUSING,ANTIFRICTION BEARING,AIR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

679747: HOUSING,ANTIFRICTION BEARING,AIR.

HOUSING,ANTIFRICTION BEARING,AIR. Key specifications include diameter: 17.397 INCHES MINIMUM AND 17.403 INCHES MAXIMUM IN, material: STEEL HOUSING, overall_length: 2.348 INCHES MINIMUM AND 2.352 INCHES MAXIMUM IN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HOUSING, end_item_identification: TF33 AIRCRAFT ENGINE, engine_section_location: TURBINE. This part is cataloged in the U.S.

Government catalog under NSN 2840-00-003-5604, 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
679747
NSN: 2840-00-003-5604
FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
diameter17.397 INCHES MINIMUM AND 17.403 INCHES MAXIMUM IN
materialSTEEL HOUSING
overall_length2.348 INCHES MINIMUM AND 2.352 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HOUSING
end_item_identificationTF33 AIRCRAFT ENGINE
engine_section_locationTURBINE
criticality_code_justificationAGAV
NSN2840-00-003-5604
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HOUSING,ANTIFRICTION BEARING,AIR TITLE COMPONENT PN 679747 MFR HOUSING,ANTIFRICTION B
KEY FEATURES
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HOUSING
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
DIAMETER: 17.397 INCHES MINIMUM AND 17.403 INCHES MAXIMUM IN
•
ENGINE SECTION LOCATION: TURBINE
•
MATERIAL: STEEL HOUSING
TECHNICAL CHARACTERISTICS
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HOUSING
CRITICALITY CODE JUSTIFICATIONAGAV
DIAMETER17.397 INCHES MINIMUM AND 17.403 INCHES MAXIMUM IN
OVERALL LENGTH2.348 INCHES MINIMUM AND 2.352 INCHES MAXIMUM IN
ENGINE SECTION LOCATIONTURBINE
END ITEM IDENTIFICATIONTF33 AIRCRAFT ENGINE
MATERIALSTEEL HOUSING
OTHER ITEMS IN FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2840-00-000-0048 2840-00-000-0049 2840-00-001-1741 2840-00-001-1743 2840-00-001-2117 2840-00-001-2284 2840-00-001-3922 2840-00-001-4903
SUBSTITUTES & CROSS-REFERENCES 1
483277Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 679747?
679747 is a HOUSING,ANTIFRICTION BEARING,AIR.
What parts can replace 679747?
There is 1 known substitute for 679747: 483277. Substitute compatibility should be verified for your specific system.
What is the NSN for 679747?
679747 is cataloged in the U.S. Government catalog under NSN 2840-00-003-5604. 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.