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4CMT26 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4CMT26: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 7075, design_type: SOLID, end_diameter: 0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN, bore_diameter: 0.3900 INCHES MINIMUM IN, overall_height: 0.2160 INCHES NOMINAL IN, special_features: LARGE END BEVELED 45DEG BY 0.075 IN. IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-459-2773, 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
4CMT26
NSN: 5340-00-459-2773
FSC: 5340 — Hardware, Commercial
CAGE: 26044 — SAF INDUSTRIES LLC DBA SAF INDUSTRIES LLC DIV GARKENYON (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
design_typeSOLID
end_diameter0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN
bore_diameter0.3900 INCHES MINIMUM IN
overall_height0.2160 INCHES NOMINAL IN
special_featuresLARGE END BEVELED 45DEG BY 0.075 IN. IN
style_designatorSEAT
surface_treatmentANODIZE
first_step_diameter0.6500 INCHES MINIMUM AND 0.6505 INCHES MAXIMUM IN
chamfer_angle_in_deg45.0
distance_from_end_to_first_step0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-459-2773
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4CMT26 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
•
FIRST STEP DIAMETER: 0.6500 INCHES MINIMUM AND 0.6505 INCHES MAXIMUM IN
•
END DIAMETER: 0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2160 INCHES NOMINAL IN
FIRST STEP DIAMETER0.6500 INCHES MINIMUM AND 0.6505 INCHES MAXIMUM IN
END DIAMETER0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURESLARGE END BEVELED 45DEG BY 0.075 IN. IN
SURFACE TREATMENTANODIZE
CHAMFER ANGLE IN DEG45.0
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4CMT26?
4CMT26 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 4CMT26?
4CMT26 is cataloged in the U.S. Government catalog under NSN 5340-00-459-2773. This indicates validated use in U.S. government and defense supply chains.
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