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388741R91 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

388741R91: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include hole_diameter: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN, flange_thickness: 0.217 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN, outside_diameter: 13.811 INCHES MINIMUM AND 13.816 INCHES MAXIMUM IN, special_features: 2 DRAIN PLUGS, peripheral_shape_style: ROUND, MULTI HOLES, bolt_circle_hole_quantity: 18. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-733-9944, 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
388741R91
NSN: 5340-00-733-9944
FSC: 5340 — Hardware, Commercial
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
hole_diameter0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
flange_thickness0.217 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
outside_diameter13.811 INCHES MINIMUM AND 13.816 INCHES MAXIMUM IN
special_features2 DRAIN PLUGS
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity18
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-00-733-9944
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 388741R91 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
•
FLANGE THICKNESS: 0.217 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
•
BOLT CIRCLE HOLE QUANTITY: 18
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
OUTSIDE DIAMETER: 13.811 INCHES MINIMUM AND 13.816 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
HOLE DIAMETER: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.217 INCHES MINIMUM AND 0.233 INCHES MAXIMUM IN
BOLT CIRCLE HOLE QUANTITY18
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
OUTSIDE DIAMETER13.811 INCHES MINIMUM AND 13.816 INCHES MAXIMUM IN
SPECIAL FEATURES2 DRAIN PLUGS
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
HOLE DIAMETER0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
12962Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
D-74461Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
119774Reference document
Same NSN cross-reference
Reference document — Secondary reference
74461Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 388741R91?
388741R91 is a COVER,ACCESS.
What parts can replace 388741R91?
There are 4 known substitutes for 388741R91: 12962, D-74461, 119774 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 388741R91?
388741R91 is cataloged in the U.S. Government catalog under NSN 5340-00-733-9944. This indicates validated use in U.S. government and defense supply chains.
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