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ST3M439-8M — RETAINER,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST3M439-8M: RETAINER,NUT AND BOLT.

The RETAINER,NUT AND BOLT is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, overall_width: 0.990 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN, overall_height: 0.410 INCHES MAXIMUM IN, overall_length: 1.597 INCHES MINIMUM IN, surface_treatment: PASSIVATE, material_thickness: 0.078 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-066-9642, 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
ST3M439-8M
NSN: 5340-01-066-9642
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialIRON ALLOY 660
overall_width0.990 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
overall_height0.410 INCHES MAXIMUM IN
overall_length1.597 INCHES MINIMUM IN
surface_treatmentPASSIVATE
material_thickness0.078 INCHES NOMINAL IN
mounting_hole_diameter0.130 INCHES NOMINAL IN
material_document_and_classificationAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE
distance_between_mounting_hole_centers1.248 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
center_to_center_distance_between_cup_and_mounting_hole0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
NSN5340-01-066-9642
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST3M439-8M 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
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.248 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.130 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.078 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN CUP AND MOUNTING HOLE: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.410 INCHES MAXIMUM IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.248 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.130 INCHES NOMINAL IN
OVERALL LENGTH1.597 INCHES MINIMUM IN
OVERALL WIDTH0.990 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
MATERIAL THICKNESS0.078 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN CUP AND MOUNTING HOLE0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE
MATERIALIRON ALLOY 660
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M439-8M?
ST3M439-8M is a RETAINER,NUT AND BOLT.
What is the NSN for ST3M439-8M?
ST3M439-8M is cataloged in the U.S. Government catalog under NSN 5340-01-066-9642. This indicates validated use in U.S. government and defense supply chains.
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