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557648 — SHIELD,HEAT,AIRCRAFT GAS TURBINE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

557648: SHIELD,HEAT,AIRCRAFT GAS TURBINE.

SHIELD,HEAT,AIRCRAFT GAS TURBINE. Key specifications include end_item_identification: ACFT ENG TF30, criticality_code_justification: AGAV. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-855-3108, 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
557648
NSN: 5340-00-855-3108
NIINs: 008553108, 009885013
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
end_item_identificationACFT ENG TF30
criticality_code_justificationAGAV
NSN5340-00-855-3108
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 557648 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TONGUE THICKNESS: 1.000 INCHES NOMINAL IN
•
TONGUE WIDTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.370 INCHES NOMINAL ROD CONNECTION IN
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STYLE DESIGNATOR: CONNECTOR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6382 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6415 ASSN STD 2ND MATERIAL RESPONSE OVERALL
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THREAD DIRECTION: RIGHT-HAND ROD CONNECTION
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NOMINAL THREAD SIZE: 0.375 INCHES ROD CONNECTION IN
•
SHANK OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TONGUE THICKNESS1.000 INCHES NOMINAL IN
TONGUE WIDTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.370 INCHES NOMINAL ROD CONNECTION IN
STYLE DESIGNATORCONNECTOR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6382 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6415 ASSN STD 2ND MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND ROD CONNECTION
NOMINAL THREAD SIZE0.375 INCHES ROD CONNECTION IN
SHANK OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
DISTANCE FROM END TO HOLE CENTER2.190 INCHES NOMINAL IN
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 557648?
557648 is a SHIELD,HEAT,AIRCRAFT GAS TURBINE.
What is the NSN for 557648?
557648 is cataloged in the U.S. Government catalog under NSN 5340-00-855-3108. 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.