The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN, material_document_and_classification: MIL-R-25988 TYPE 1, CLASS 1, GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.
Government catalog under NSN 5331-01-129-0630, 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
ST7M251-12
NSN:5331-01-129-0630 FSC:5331 — O-ring CAGE:76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
material
RUBBER FLUOROSILICONE CLASS FQ
hardness_rating
70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter
0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
elongation_percentage
125 MAXIMUM
cross-sectional_height
0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
material_document_and_classification
MIL-R-25988 TYPE 1, CLASS 1, GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE
NSN
5331-01-129-0630
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25988 TYPE 1, CLASS 1, GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT
0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
HARDNESS RATING
70.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
MIL-R-25988 TYPE 1, CLASS 1, GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE
ELONGATION PERCENTAGE
125 MAXIMUM
CENTER HOLE DIAMETER
0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
MATERIAL
RUBBER FLUOROSILICONE CLASS FQ
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is ST7M251-12?
ST7M251-12 is a O-RING.
What parts can replace ST7M251-12?
There are 8 known substitutes for ST7M251-12: 00364-035 F70, CGR1601-0125-12, 7583-12 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST7M251-12?
ST7M251-12 is cataloged in the U.S. Government catalog under NSN 5331-01-129-0630. This indicates validated use in U.S. government and defense supply chains.
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