PartsTable
Technical Data Sheet
Download PDF

12918998 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12918998: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL, hole_diameter: 0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, body_thickness: 0.500 INCHES NOMINAL IN, inside_diameter: 1.720 INCHES NOMINAL IN, flange_thickness: 0.190 INCHES NOMINAL IN, outside_diameter: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-334-0021, 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
12918998
NSN: 5340-01-334-0021
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL
hole_diameter0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
body_thickness0.500 INCHES NOMINAL IN
inside_diameter1.720 INCHES NOMINAL IN
flange_thickness0.190 INCHES NOMINAL IN
outside_diameter3.000 INCHES NOMINAL IN
special_featuresALTERNATE FINISH PHOSPHATE MANGANESE,FINISH 5.3.1.3,MIL-STD-171; 4TH HOLE 0.249 IN. MIN AND 0.253 IN. MAS DIA IN
surface_treatmentPLASTIC EPOXY
bolt_circle_diameter2.500 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity4
NSN5340-01-334-0021
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12918998 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 171 MIL STD SINGLE TREATMENT RESPONSE
•
FLANGE THICKNESS: 0.190 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 4
•
FIRST RECESS INSIDE HEIGHT: 0.930 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
INSIDE DIAMETER: 1.720 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION171 MIL STD SINGLE TREATMENT RESPONSE
FLANGE THICKNESS0.190 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY4
FIRST RECESS INSIDE HEIGHT0.930 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
INSIDE DIAMETER1.720 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.500 INCHES NOMINAL IN
SPECIAL FEATURESALTERNATE FINISH PHOSPHATE MANGANESE,FINISH 5.3.1.3,MIL-STD-171; 4TH HOLE 0.249 IN. MIN AND 0.253 IN. MAS DIA 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: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
Ready to buy 12918998?
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 12918998?
12918998 is a COVER,ACCESS.
What is the NSN for 12918998?
12918998 is cataloged in the U.S. Government catalog under NSN 5340-01-334-0021. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12918998