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7840-14 ITEM 12 — 7840-14 ITEM 12

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7840-14 ITEM 12: 7840-14 ITEM 12.

The 7840-14 ITEM 12 is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL,ASTM A515 OR ASTM A105. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-155-4532, 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
7840-14 ITEM 12
NSN: 5340-01-155-4532
FSC: 5340 — Hardware, Commercial
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,ASTM A515 OR ASTM A105
NSN5340-01-155-4532
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7840-14 ITEM 12 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,ASTM A515 OR ASTM A105
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,ASTM A515 OR ASTM A105
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 7840-14 ITEM 12?
7840-14 ITEM 12 is a 7840-14 ITEM 12.
What is the NSN for 7840-14 ITEM 12?
7840-14 ITEM 12 is cataloged in the U.S. Government catalog under NSN 5340-01-155-4532. 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.