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Technical Data Sheet
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12512-4 ✓ Verified by PartsTable
Equip · 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 equip® Surface Mounted Keystone Box fitting 2 Keystone Jacks supports two Ethernet connection. You can install the Keystone box with Cat.5e, Cat.6, or Cat.6A keystone jacks. This product is packed with one piece of adhesive tape which allows you to install the mounted box easily, no tools needed.  This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-205-2906, 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
12512-4
NSN: 5330-00-205-2906
FSC: 5330
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 630
overall_width0.470 INCHES NOMINAL IN
overall_length0.470 INCHES NOMINAL IN
special_featuresHOLE COUNTERSUNK,0.380 IN.,100 DEG ANGLE IN
style_designatorNON-CIRCULAR W/O BOLT HOLES
aperture_diameter0.193 INCHES NOMINAL IN
surface_treatmentZINC
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-P-6808 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5330-00-205-2906
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12512-4 MFR: Equip ⚠ 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
•
CROSS-SECTIONAL HEIGHT: 0.250 INCHES NOMINAL IN
•
MATERIAL: WOOL OVERALL
•
CROSS-SECTIONAL WIDTH: 0.370 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
STYLE DESIGNATOR: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
MATERIALWOOL OVERALL
CROSS-SECTIONAL WIDTH0.370 INCHES NOMINAL IN
OVERALL WIDTH0.370 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL LENGTH7.000 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
33-50Interchangeable
interchangeable cross-reference
interchangeable
125124Interchangeable
interchangeable cross-reference
interchangeable
8333146Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12512-4?
12512-4 is a FELT,MECHANICAL,PREFORMED manufactured by Equip.
What parts can replace 12512-4?
There are 3 known substitutes for 12512-4: 33-50, 125124, 8333146. Substitute compatibility should be verified for your specific system.
Is 12512-4 still available?
12512-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026