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S9405-39 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S9405-39: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321, design_type: SOLID, bore_diameter: 1.8200 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN, overall_height: 0.2200 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN, counterbore_length: 0.1000 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN, first_step_diameter: 2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-177-3077, 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
S9405-39
NSN: 5340-01-177-3077
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 304 OR STEEL COMP 304L OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321
design_typeSOLID
bore_diameter1.8200 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN
overall_height0.2200 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN
counterbore_length0.1000 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN
first_step_diameter2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN
counterbore_diameter2.0700 INCHES MINIMUM AND 2.0900 INCHES MAXIMUM IN
NSN5340-01-177-3077
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S9405-39 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: 2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720, COMP 302 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 304 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 304L FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-763, CLASS 310 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-763, CLASS 316, COND A FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-763, CLASS 321 FED SPEC 6TH MATERIAL RESPONSE
•
COUNTERBORE LENGTH: 0.1000 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN
•
COUNTERBORE DIAMETER: 2.0700 INCHES MINIMUM AND 2.0900 INCHES MAXIMUM IN
•
BORE DIAMETER: 1.8200 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.2200 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN
FIRST STEP DIAMETER2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720, COMP 302 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 304 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 304L FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-763, CLASS 310 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-763, CLASS 316, COND A FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-763, CLASS 321 FED SPEC 6TH MATERIAL RESPONSE
COUNTERBORE LENGTH0.1000 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN
COUNTERBORE DIAMETER2.0700 INCHES MINIMUM AND 2.0900 INCHES MAXIMUM IN
BORE DIAMETER1.8200 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321
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 1
10112882Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 S9405-39?
S9405-39 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace S9405-39?
There is 1 known substitute for S9405-39: 10112882. Substitute compatibility should be verified for your specific system.
What is the NSN for S9405-39?
S9405-39 is cataloged in the U.S. Government catalog under NSN 5340-01-177-3077. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.