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1258404-S — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1258404-S: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include body_height: 1.063 INCHES NOMINAL IN, overall_height: 2.625 INCHES NOMINAL IN, style_designator: THRU-HOLE, body_outside_diameter: 3.655 INCHES NOMINAL IN, opening_inside_diameter: 0.240 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-515-6697, 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
1258404-S
NSN: 5340-01-515-6697
FSC: 5340 — Hardware, Commercial
CAGE: 52845 — KOHLER CO ENGINE PLANT DIV (USA)
SPECIFICATIONS
body_height1.063 INCHES NOMINAL IN
overall_height2.625 INCHES NOMINAL IN
style_designatorTHRU-HOLE
body_outside_diameter3.655 INCHES NOMINAL IN
opening_inside_diameter0.240 INCHES NOMINAL IN
NSN5340-01-515-6697
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1258404-S 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
•
OPENING INSIDE DIAMETER: 0.240 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 3.655 INCHES NOMINAL IN
•
BODY HEIGHT: 1.063 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.625 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.240 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER3.655 INCHES NOMINAL IN
BODY HEIGHT1.063 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
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 1258404-S?
1258404-S is a BOOT,DUST AND MOISTURE SEAL.
What is the NSN for 1258404-S?
1258404-S is cataloged in the U.S. Government catalog under NSN 5340-01-515-6697. 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.