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645411 — SHROUD SEGMENT,TURBINE,NONAIRCRA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

645411: SHROUD SEGMENT,TURBINE,NONAIRCRA.

SHROUD SEGMENT,TURBINE,NONAIRCRA. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN, cross-sectional_height: 0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-004-5061, 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
645411
NSN: 5331-00-004-5061
NIINs: 000045061, 010954459
FSC: 5331 — O-ring
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
cross-sectional_height0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
NSN5331-00-004-5061
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 645411 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
•
CROSS-SECTIONAL HEIGHT: 0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.171 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 2
AMS 7276GReference document
Same NSN cross-reference
Reference document — Secondary reference
MILR83248ESReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 645411?
645411 is a SHROUD SEGMENT,TURBINE,NONAIRCRA.
What parts can replace 645411?
There are 2 known substitutes for 645411: AMS 7276G, MILR83248ES. Substitute compatibility should be verified for your specific system.
What is the NSN for 645411?
645411 is cataloged in the U.S. Government catalog under NSN 5331-00-004-5061. This indicates validated use in U.S. government and defense supply chains.
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