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13074002 — COVER ASSEMBY,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

13074002: COVER ASSEMBY,ACCESS.

The COVER ASSEMBY,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, overall_diameter: 4.750 INCHES NOMINAL IN, accessory_components_and_quantity: GASKET 1; PLATE 1. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-474-5657, 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
13074002
NSN: 5340-01-474-5657
FSC: 5340 — Hardware, Commercial
CAGE: 04939 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_diameter4.750 INCHES NOMINAL IN
accessory_components_and_quantityGASKET 1; PLATE 1
general_characteristics_item_descriptionPLATE THICKNESS 0.050 IN; GASKET DIA. 3.500 IN; SIX MTG HOLES EQUALLY SPACED ON A 4.125 IN. DIA; GASKET MTG HOLES 0.182 IN. DIA; PLATE MTG HOLES DIA. 0.228 IN; PLATE FINISH COLOR AIRCRAFT GREEN IN
NSN5340-01-474-5657
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 13074002 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
•
OVERALL DIAMETER: 4.750 INCHES NOMINAL IN
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: PLATE THICKNESS 0.050 IN; GASKET DIA. 3.500 IN; SIX MTG HOLES EQUALLY SPACED ON A 4.125 IN. DIA; GASKET MTG HOLES 0.182 IN. DIA; PLATE MTG HOLES DIA. 0.228 IN; PLATE FINISH COLOR AIRCRAFT GREEN IN
•
ACCESSORY COMPONENTS AND QUANTITY: GASKET 1; PLATE 1
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER4.750 INCHES NOMINAL IN
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPLATE THICKNESS 0.050 IN; GASKET DIA. 3.500 IN; SIX MTG HOLES EQUALLY SPACED ON A 4.125 IN. DIA; GASKET MTG HOLES 0.182 IN. DIA; PLATE MTG HOLES DIA. 0.228 IN; PLATE FINISH COLOR AIRCRAFT GREEN IN
ACCESSORY COMPONENTS AND QUANTITYGASKET 1; PLATE 1
MATERIALALUMINUM ALLOY
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 13074002?
13074002 is a COVER ASSEMBY,ACCESS.
What is the NSN for 13074002?
13074002 is cataloged in the U.S. Government catalog under NSN 5340-01-474-5657. 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.