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7972996 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7972996: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: IRON MALLEABLE, ear_radius: 0.312 INCHES NOMINAL IN, body_radius: 1.500 INCHES NOMINAL IN, hole_diameter: 0.281 INCHES NOMINAL IN, body_thickness: 0.250 INCHES NOMINAL IN, inside_diameter: 1.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-178-0698, 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
7972996
NSN: 5340-00-178-0698
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialIRON MALLEABLE
ear_radius0.312 INCHES NOMINAL IN
body_radius1.500 INCHES NOMINAL IN
hole_diameter0.281 INCHES NOMINAL IN
body_thickness0.250 INCHES NOMINAL IN
inside_diameter1.875 INCHES NOMINAL IN
inverted_radius0.312 INCHES NOMINAL IN
flange_thickness0.250 INCHES NOMINAL IN
features_providedSEALING CAPABILITY
surface_treatmentPHOSPHATE
bolt_circle_diameter2.750 INCHES NOMINAL IN
fsc_application_dataTRAVERSING MECHANISM,TANK TURRET
NSN5340-00-178-0698
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7972996 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: TRAVERSING MECHANISM,TANK TURRET
•
FLANGE THICKNESS: 0.250 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.062 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.750 INCHES NOMINAL IN
•
EAR RADIUS: 0.312 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
•
INVERTED RADIUS: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATATRAVERSING MECHANISM,TANK TURRET
FLANGE THICKNESS0.250 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.062 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.750 INCHES NOMINAL IN
EAR RADIUS0.312 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
INVERTED RADIUS0.312 INCHES NOMINAL IN
FEATURES PROVIDEDSEALING CAPABILITY
SECURING DEVICE TYPETHREADED FASTENER
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 1
2520001780698Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 7972996?
7972996 is a COVER,ACCESS.
What parts can replace 7972996?
There is 1 known substitute for 7972996: 2520001780698. Substitute compatibility should be verified for your specific system.
What is the NSN for 7972996?
7972996 is cataloged in the U.S. Government catalog under NSN 5340-00-178-0698. 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.