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12917704 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12917704: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, body_thickness: 3.650 INCHES NOMINAL IN, outside_diameter: 21.450 INCHES NOMINAL IN, special_features: 8 HOLES 0.578 INCHES ON OUTSIDE DIA 23.000 INCHES IN, bolt_circle_diameter: 19.925 INCHES NOMINAL IN, securing_device_type: THREADED FASTENER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-357-8402, 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
12917704
NSN: 5340-01-357-8402
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL
body_thickness3.650 INCHES NOMINAL IN
outside_diameter21.450 INCHES NOMINAL IN
special_features8 HOLES 0.578 INCHES ON OUTSIDE DIA 23.000 INCHES IN
bolt_circle_diameter19.925 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleROUND, MULTI HOLES
end_item_identificationCOMMANDER'S INDEPENDENT THERMAL VIEWER
bolt_circle_hole_quantity3
cross-sectional_shape_styleFLAT W/OPEN CENTER
NSN5340-01-357-8402
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12917704 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
•
BOLT CIRCLE HOLE QUANTITY: 3
•
CROSS-SECTIONAL SHAPE STYLE: FLAT W/OPEN CENTER
•
OUTSIDE DIAMETER: 21.450 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: THREADED FASTENER
•
BOLT CIRCLE DIAMETER: 19.925 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY3
CROSS-SECTIONAL SHAPE STYLEFLAT W/OPEN CENTER
OUTSIDE DIAMETER21.450 INCHES NOMINAL IN
SECURING DEVICE TYPETHREADED FASTENER
BOLT CIRCLE DIAMETER19.925 INCHES NOMINAL IN
SPECIAL FEATURES8 HOLES 0.578 INCHES ON OUTSIDE DIA 23.000 INCHES IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
END ITEM IDENTIFICATIONCOMMANDER'S INDEPENDENT THERMAL VIEWER
MATERIALSTEEL
BODY THICKNESS3.650 INCHES NOMINAL IN
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: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 12917704?
12917704 is a COVER,ACCESS.
What is the NSN for 12917704?
12917704 is cataloged in the U.S. Government catalog under NSN 5340-01-357-8402. This indicates validated use in U.S. government and defense supply chains.
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