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MS9551-021 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS9551-021: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, overall_length: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, surface_treatment: CADMIUM, mounting_hole_diameter: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN, part_name_assigned_by_controlling_agency: BRACKET FLAT STEEL CADMIUM PLATED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-612-8657, 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
MS9551-021
NSN: 5340-01-612-8657
FSC: 5340 — Hardware, Commercial
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
overall_length1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
surface_treatmentCADMIUM
mounting_hole_diameter0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyBRACKET FLAT STEEL CADMIUM PLATED
NSN5340-01-612-8657
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9551-021 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
•
MOUNTING HOLE DIAMETER: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: STEEL COMP 4130
TECHNICAL CHARACTERISTICS
MOUNTING HOLE DIAMETER0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
OVERALL LENGTH1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM
PART NAME ASSIGNED BY CONTROLLING AGENCYBRACKET FLAT STEEL CADMIUM PLATED
MATERIALSTEEL COMP 4130
SUBSTITUTES & CROSS-REFERENCES 1
SAE-AS9551Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 MS9551-021?
MS9551-021 is a BRACKET,MOUNTING.
What parts can replace MS9551-021?
There is 1 known substitute for MS9551-021: SAE-AS9551. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9551-021?
MS9551-021 is cataloged in the U.S. Government catalog under NSN 5340-01-612-8657. This indicates validated use in U.S. government and defense supply chains.
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