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7-317221118 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7-317221118: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: RUBBER SYNTHETIC, design_type: FRICTION, overall_diameter: 0.740 INCHES NOMINAL IN, special_features: MATERIAL IS ELASTOMER HMS17-1159 CL 1, opening_inside_diameter_for_which_designed: 0.740 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-187-3579, 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
7-317221118
NSN: 5340-01-187-3579
FSC: 5340 — Hardware, Commercial
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
design_typeFRICTION
overall_diameter0.740 INCHES NOMINAL IN
special_featuresMATERIAL IS ELASTOMER HMS17-1159 CL 1
opening_inside_diameter_for_which_designed0.740 INCHES NOMINAL IN
NSN5340-01-187-3579
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7-317221118 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: 0.740 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.740 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER0.740 INCHES NOMINAL IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.740 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL IS ELASTOMER HMS17-1159 CL 1
MATERIALRUBBER SYNTHETIC
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 7-317221118?
7-317221118 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What is the NSN for 7-317221118?
7-317221118 is cataloged in the U.S. Government catalog under NSN 5340-01-187-3579. 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.