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664356 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

664356: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316, design_type: SOLID, end_diameter: 0.3700 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN, overall_height: 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN, special_features: NOT CASEHARDENED; 0.250-28 UNF-3B THD BORE, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-799-6633, 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
664356
NSN: 5340-00-799-6633
FSC: 5340 — Hardware, Commercial
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316
design_typeSOLID
end_diameter0.3700 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN
overall_height0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
special_featuresNOT CASEHARDENED; 0.250-28 UNF-3B THD BORE
style_designatorSEAT
first_step_length0.0800 INCHES NOMINAL IN
first_step_diameter1.0500 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM IN
second_end_diameter0.8900 INCHES MINIMUM AND 0.9100 INCHES MAXIMUM IN
distance_from_end_to_first_step0.1000 INCHES NOMINAL IN
material_document_and_classificationMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-799-6633
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 664356 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: 1.0500 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM IN
•
END DIAMETER: 0.3700 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN
•
SECOND END DIAMETER: 0.8900 INCHES MINIMUM AND 0.9100 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.1000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
FIRST STEP DIAMETER1.0500 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM IN
END DIAMETER0.3700 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN
SECOND END DIAMETER0.8900 INCHES MINIMUM AND 0.9100 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.1000 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE
FIRST STEP LENGTH0.0800 INCHES NOMINAL IN
SPECIAL FEATURESNOT CASEHARDENED; 0.250-28 UNF-3B THD BORE
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 664356?
664356 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 664356?
664356 is cataloged in the U.S. Government catalog under NSN 5340-00-799-6633. This indicates validated use in U.S. government and defense supply chains.
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