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11581541 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11581541: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL, design_type: FRICTION, overall_diameter: 0.311 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN, inside_diameter_length: 0.507 INCHES NOMINAL IN, end_item_identification: LW155 HOWITZER, round_cap_outside_surface_condition: SMOOTH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-525-6301, 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
11581541
NSN: 5340-01-525-6301
FSC: 5340 — Hardware, Commercial
CAGE: 1NUW7 — US ARMY BENET LABORATORIES RDAR-WSB-O (USA)
SPECIFICATIONS
materialSTEEL
design_typeFRICTION
overall_diameter0.311 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
inside_diameter_length0.507 INCHES NOMINAL IN
end_item_identificationLW155 HOWITZER
round_cap_outside_surface_conditionSMOOTH
opening_inside_diameter_for_which_designed0.189 INCHES NOMINAL IN
NSN5340-01-525-6301
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11581541 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
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 0.311 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.189 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
INSIDE DIAMETER LENGTH: 0.507 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER0.311 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.189 INCHES NOMINAL IN
END ITEM IDENTIFICATIONLW155 HOWITZER
MATERIALSTEEL
INSIDE DIAMETER LENGTH0.507 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
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 2
E1211131Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
777.21.048Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11581541?
11581541 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 11581541?
There are 2 known substitutes for 11581541: E1211131, 777.21.048. Substitute compatibility should be verified for your specific system.
What is the NSN for 11581541?
11581541 is cataloged in the U.S. Government catalog under NSN 5340-01-525-6301. This indicates validated use in U.S. government and defense supply chains.
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