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12549841 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12549841: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8640, body_thickness: 0.380 INCHES NOMINAL IN, outside_diameter: 5.500 INCHES NOMINAL IN, special_features: BOSS 1.120 DIA X 0.500 H W/0.625-242UNEF-2B HOLE 0.400 DEEP; COLOR GREEN, surface_treatment: PAINT, bolt_circle_diameter: 4.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-318-4273, 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
12549841
NSN: 5340-01-318-4273
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8640
body_thickness0.380 INCHES NOMINAL IN
outside_diameter5.500 INCHES NOMINAL IN
special_featuresBOSS 1.120 DIA X 0.500 H W/0.625-242UNEF-2B HOLE 0.400 DEEP; COLOR GREEN
surface_treatmentPAINT
bolt_circle_diameter4.500 INCHES NOMINAL IN
peripheral_shape_styleROUND, MULTI HOLES
end_item_identificationM1A1 TANK
bolt_circle_hole_quantity4
cross-sectional_shape_styleFLAT
NSN5340-01-318-4273
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12549841 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: 4
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
OUTSIDE DIAMETER: 5.500 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 4.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: PAINT
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY4
CROSS-SECTIONAL SHAPE STYLEFLAT
OUTSIDE DIAMETER5.500 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.500 INCHES NOMINAL IN
SPECIAL FEATURESBOSS 1.120 DIA X 0.500 H W/0.625-242UNEF-2B HOLE 0.400 DEEP; COLOR GREEN
SURFACE TREATMENTPAINT
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
END ITEM IDENTIFICATIONM1A1 TANK
MATERIALSTEEL COMP 4130 OR STEEL COMP 8640
BODY THICKNESS0.380 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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12549841?
12549841 is a COVER,ACCESS.
What is the NSN for 12549841?
12549841 is cataloged in the U.S. Government catalog under NSN 5340-01-318-4273. This indicates validated use in U.S. government and defense supply chains.
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