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12478031 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12478031: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.582 INCHES NOMINAL IN, length: 4.250 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 5052, body_thickness: 0.125 INCHES NOMINAL IN, end_item_identification: END ITEM NSN: 2350-01-390-4683; RECOVERY VEHICLE, FULL TRACKED, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-554-8633, 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
12478031
NSN: 5340-01-554-8633
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width4.582 INCHES NOMINAL IN
length4.250 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 5052
body_thickness0.125 INCHES NOMINAL IN
end_item_identificationEND ITEM NSN: 2350-01-390-4683; RECOVERY VEHICLE, FULL TRACKED
cross-sectional_shape_styleFLAT
material_document_and_classificationASTM B209. T6 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B209. H32 OR H34 ASSN STD 2ND MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyCOVER, BILGE PUMP HOSE OPENING
NSN5340-01-554-8633
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12478031 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
•
LENGTH: 4.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B209. T6 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B209. H32 OR H34 ASSN STD 2ND MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
WIDTH: 4.582 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 5052
•
BODY THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH4.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B209. T6 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B209. H32 OR H34 ASSN STD 2ND MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
WIDTH4.582 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCOVER, BILGE PUMP HOSE OPENING
END ITEM IDENTIFICATIONEND ITEM NSN: 2350-01-390-4683; RECOVERY VEHICLE, FULL TRACKED
MATERIALALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 5052
BODY THICKNESS0.125 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 12478031?
12478031 is a COVER,ACCESS.
What is the NSN for 12478031?
12478031 is cataloged in the U.S. Government catalog under NSN 5340-01-554-8633. This indicates validated use in U.S. government and defense supply chains.
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