Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The GASKET is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM, outside_diameter: 0.680 INCHES MAXIMUM IN, special_features: STYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200, style_designator: SPLIT HELICAL-RIGHT HAND. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-092-7364, 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
C291-7
NSN:5330-00-092-7364 FSC:5330 CAGE:81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
material
STEEL OVERALL
hole_diameter
0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
hardness_rating
38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
outside_diameter
0.680 INCHES MAXIMUM IN
special_features
STYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
style_designator
SPLIT HELICAL-RIGHT HAND
material_thickness
0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
supplementary_features
CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
material_document_and_classification
ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN
5330-00-092-7364
COMPONENT DIAGRAM
KEY FEATURES
•
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURES
CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURES
STYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
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FREQUENTLY ASKED QUESTIONS
What is C291-7?
C291-7 is a GASKET.
What parts can replace C291-7?
There are 4 known substitutes for C291-7: S604, MS35338-8, 40S33 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C291-7?
C291-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-092-7364. This indicates validated use in U.S. government and defense supply chains.
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