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12321105 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12321105: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, hole_diameter: 0.281 INCHES NOMINAL IN, body_thickness: 0.310 INCHES NOMINAL IN, outside_diameter: 3.380 INCHES NOMINAL IN, surface_treatment: PHOSPHATE, bolt_circle_diameter: 2.820 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-180-3493, 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
12321105
NSN: 5340-01-180-3493
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
hole_diameter0.281 INCHES NOMINAL IN
body_thickness0.310 INCHES NOMINAL IN
outside_diameter3.380 INCHES NOMINAL IN
surface_treatmentPHOSPHATE
bolt_circle_diameter2.820 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity4
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-180-3493
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12321105 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232, TYPE M, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE
•
BOLT CIRCLE HOLE QUANTITY: 4
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
OUTSIDE DIAMETER: 3.380 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
BOLT CIRCLE DIAMETER: 2.820 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232, TYPE M, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE
BOLT CIRCLE HOLE QUANTITY4
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
OUTSIDE DIAMETER3.380 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
BOLT CIRCLE DIAMETER2.820 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12321105?
12321105 is a COVER,ACCESS.
What is the NSN for 12321105?
12321105 is cataloged in the U.S. Government catalog under NSN 5340-01-180-3493. This indicates validated use in U.S. government and defense supply chains.
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