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930-21928 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

930-21928: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 7.0000 INCHES NOMINAL IN, length: 20.9400 INCHES NOMINAL IN, material: PLASTIC POLYCARBONATE, inside_width: 6.8850 INCHES NOMINAL IN, hole_diameter: 0.2180 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN, inside_length: 20.6900 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-434-4938, 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
930-21928
NSN: 5340-01-434-4938
FSC: 5340 — Hardware, Commercial
CAGE: 04801 — L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC (USA)
SPECIFICATIONS
width7.0000 INCHES NOMINAL IN
length20.9400 INCHES NOMINAL IN
materialPLASTIC POLYCARBONATE
inside_width6.8850 INCHES NOMINAL IN
hole_diameter0.2180 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
inside_length20.6900 INCHES NOMINAL IN
body_thickness0.1250 INCHES NOMINAL IN
flange_thickness0.1250 INCHES NOMINAL IN
securing_device_typeSPECIAL
first_recess_inside_height1.1250 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-434-4938
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 930-21928 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
•
INSIDE WIDTH: 6.8850 INCHES NOMINAL IN
•
LENGTH: 20.9400 INCHES NOMINAL IN
•
INSIDE LENGTH: 20.6900 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.1250 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 1.1250 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-393 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE OR RECTANGULAR RECESS
TECHNICAL CHARACTERISTICS
INSIDE WIDTH6.8850 INCHES NOMINAL IN
LENGTH20.9400 INCHES NOMINAL IN
INSIDE LENGTH20.6900 INCHES NOMINAL IN
FLANGE THICKNESS0.1250 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT1.1250 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-393 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
SECURING DEVICE TYPESPECIAL
WIDTH7.0000 INCHES NOMINAL IN
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 930-21928?
930-21928 is a COVER,ACCESS.
What is the NSN for 930-21928?
930-21928 is cataloged in the U.S. Government catalog under NSN 5340-01-434-4938. This indicates validated use in U.S. government and defense supply chains.
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