PartsTable
Technical Data Sheet
PartsTable / COMPONENT / NA73
NA73 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, hole_diameter: 0.393 INCHES NOMINAL IN, body_thickness: 0.050 INCHES NOMINAL IN, inside_diameter: 4.875 INCHES NOMINAL IN, flange_thickness: 0.050 INCHES NOMINAL IN, outside_diameter: 5.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-117-9093, 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
NA73
NSN: 5340-00-117-9093
FSC: 5340
CAGE: 28260 — WASCOMAT OF AMERICA DIV OF BERMIL INDUSTRIES CORP (USA)
SPECIFICATIONS
materialSTEEL
hole_diameter0.393 INCHES NOMINAL IN
body_thickness0.050 INCHES NOMINAL IN
inside_diameter4.875 INCHES NOMINAL IN
flange_thickness0.050 INCHES NOMINAL IN
outside_diameter5.000 INCHES NOMINAL IN
inside_corner_radius0.062 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, ONE HOLE
first_recess_inside_height0.375 INCHES NOMINAL IN
cross-sectional_shape_styleCIRCULAR RECESS
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-00-117-9093
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NA73 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
•
PERIPHERAL SHAPE STYLE: ROUND, ONE HOLE
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
FLANGE THICKNESS: 0.050 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.375 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
HOLE DIAMETER: 0.393 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
INSIDE DIAMETER: 4.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND, ONE HOLE
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
FLANGE THICKNESS0.050 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.375 INCHES NOMINAL IN
MATERIALSTEEL
HOLE DIAMETER0.393 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
INSIDE DIAMETER4.875 INCHES NOMINAL IN
OUTSIDE DIAMETER5.000 INCHES NOMINAL IN
BODY THICKNESS0.050 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A135Interchangeable
interchangeable cross-reference
interchangeable
GGG-S-121 TY1CL3Interchangeable
interchangeable cross-reference
interchangeable
B107.15Interchangeable
interchangeable cross-reference
interchangeable
6530-01-C24-4419Interchangeable
interchangeable cross-reference
interchangeable
30005-560Interchangeable
interchangeable cross-reference
interchangeable
2023-2-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy NA73?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is NA73?
NA73 is a COVER,ACCESS.
What parts can replace NA73?
There are 6 known substitutes for NA73: A135, GGG-S-121 TY1CL3, B107.15 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NA73?
NA73 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-117-9093. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — NA73

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026