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571008 — O-RING

✓ Government record, cited
Legrand · ORING SEAL
PRODUCT OVERVIEW

571008: O-RING.

Mechanisms supplied with rocker plates, to be equipped with support frames and surround plates. Key specifications include material: RUBBER SILICONE CLASS Q, center_hole_diameter: 1.045 INCHES MINIMUM AND 1.057 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-984-7871, 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
571008
NSN: 5331-00-984-7871
NIINs: 009847871, 013346616
FSC: 5331 — O-ring
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
center_hole_diameter1.045 INCHES MINIMUM AND 1.057 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-984-7871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 571008 MFR: Legrand ⚠ 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: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.045 INCHES MINIMUM AND 1.057 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SILICONE CLASS Q
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.045 INCHES MINIMUM AND 1.057 INCHES MAXIMUM IN
MATERIALRUBBER SILICONE CLASS Q
SUBSTITUTES & CROSS-REFERENCES 3
640561Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
571007Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
571006Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 571008?
571008 is a O-RING manufactured by Legrand.
What parts can replace 571008?
There are 3 known substitutes for 571008: 640561, 571007, 571006. Substitute compatibility should be verified for your specific system.
What is the NSN for 571008?
571008 is cataloged in the U.S. Government catalog under NSN 5331-00-984-7871. This indicates validated use in U.S. government and defense supply chains.
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