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Technical Data Sheet
9M201-4A ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BUTTON,PLUG is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1045 OR STEEL COMP 1050, head_height: 0.078 INCHES NOMINAL IN, overall_height: 0.219 INCHES NOMINAL IN, style_designator: STANDARD, surface_treatment: ZINC, head_outside_diameter: 0.656 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-120-9525, 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
9M201-4A
NSN: 5340-01-120-9525
FSC: 5340
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1045 OR STEEL COMP 1050
head_height0.078 INCHES NOMINAL IN
overall_height0.219 INCHES NOMINAL IN
prong_quantity8
style_designatorSTANDARD
surface_treatmentZINC
head_outside_diameter0.656 INCHES NOMINAL IN
prong_outside_diameter0.480 INCHES NOMINAL IN
hole_accommodation_diameter0.438 INCHES NOMINAL IN
material_accommodated_thickness0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
material_document_and_classificationSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1020 ASSN STD SINGLE MATERIAL RESPONSE OR ASAE 1045 FED SPEC ALL MATERIAL RESPONSES OR SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-120-9525
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9M201-4A 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
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1020 ASSN STD SINGLE MATERIAL RESPONSE OR ASAE 1045 FED SPEC ALL MATERIAL RESPONSES OR SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE
STYLE DESIGNATOR: STANDARD
HEAD HEIGHT: 0.078 INCHES NOMINAL IN
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1045 OR STEEL COMP 1050
HEAD OUTSIDE DIAMETER: 0.656 INCHES NOMINAL IN
PRONG OUTSIDE DIAMETER: 0.480 INCHES NOMINAL IN
SURFACE TREATMENT: ZINC
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1020 ASSN STD SINGLE MATERIAL RESPONSE OR ASAE 1045 FED SPEC ALL MATERIAL RESPONSES OR SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE
STYLE DESIGNATORSTANDARD
HEAD HEIGHT0.078 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1045 OR STEEL COMP 1050
HEAD OUTSIDE DIAMETER0.656 INCHES NOMINAL IN
PRONG OUTSIDE DIAMETER0.480 INCHES NOMINAL IN
OVERALL HEIGHT0.219 INCHES NOMINAL IN
SURFACE TREATMENTZINC
HOLE ACCOMMODATION DIAMETER0.438 INCHES NOMINAL IN
MATERIAL ACCOMMODATED THICKNESS0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
51043Interchangeable
interchangeable cross-reference
interchangeable
51917-17Interchangeable
interchangeable cross-reference
interchangeable
800511-007Interchangeable
interchangeable cross-reference
interchangeable
SS-51043-K2915Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9M201-4A?
9M201-4A is a BUTTON,PLUG.
What parts can replace 9M201-4A?
There are 4 known substitutes for 9M201-4A: 51043, 51917-17, 800511-007 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9M201-4A?
9M201-4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-120-9525. This indicates validated use in U.S. government and defense supply chains.
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