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B164-076B — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B164-076B: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.953 INCHES NOMINAL IN, length: 4.828 INCHES NOMINAL IN, material: STEEL, corner_radius: 1.054 INCHES NOMINAL IN, fsc_application_data: MARINE BOILERS, securing_device_type: THREADED FASTENER. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-862-9390, 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
B164-076B
NSN: 5340-00-862-9390
FSC: 5340 — Hardware, Commercial
CAGE: 80376 — COMBUSTION ENGINEERING INC (USA)
SPECIFICATIONS
width3.953 INCHES NOMINAL IN
length4.828 INCHES NOMINAL IN
materialSTEEL
corner_radius1.054 INCHES NOMINAL IN
fsc_application_dataMARINE BOILERS
securing_device_typeTHREADED FASTENER
peripheral_shape_styleDIAMOND, ROUNDED CORNERS, NO HOLES
NSN5340-00-862-9390
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B164-076B 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
•
FSC APPLICATION DATA: MARINE BOILERS
•
CORNER RADIUS: 1.054 INCHES NOMINAL IN
•
LENGTH: 4.828 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: THREADED FASTENER
•
PERIPHERAL SHAPE STYLE: DIAMOND, ROUNDED CORNERS, NO HOLES
•
WIDTH: 3.953 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAMARINE BOILERS
CORNER RADIUS1.054 INCHES NOMINAL IN
LENGTH4.828 INCHES NOMINAL IN
SECURING DEVICE TYPETHREADED FASTENER
PERIPHERAL SHAPE STYLEDIAMOND, ROUNDED CORNERS, NO HOLES
WIDTH3.953 INCHES NOMINAL IN
MATERIALSTEEL
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 3
F166-940ITEM8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
E996-240PC4-29-5ASWSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
803-841216 PLAT E NO.29-5ASWReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B164-076B?
B164-076B is a COVER,ACCESS.
What parts can replace B164-076B?
There are 3 known substitutes for B164-076B: F166-940ITEM8, E996-240PC4-29-5ASW, 803-841216 PLAT E NO.29-5ASW. Substitute compatibility should be verified for your specific system.
What is the NSN for B164-076B?
B164-076B is cataloged in the U.S. Government catalog under NSN 5340-00-862-9390. 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.