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Technical Data Sheet
H2945 ✓ 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 FRAME,ACCESS HOLE is a the manufacturer industrial component. Key specifications include material: IRON CAST OVERALL, overall_length: 4.500 INCHES NOMINAL IN, aperture_length: 2.312 INCHES NOMINAL IN, mounting_method: THREADED HOLE(S), overall_diameter: 3.500 INCHES NOMINAL IN, style_designator: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-350-6485, 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
H2945
NSN: 5340-00-350-6485
FSC: 5340
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
overall_length4.500 INCHES NOMINAL IN
aperture_length2.312 INCHES NOMINAL IN
mounting_methodTHREADED HOLE(S)
overall_diameter3.500 INCHES NOMINAL IN
style_designatorROUND
overall_thickness2.312 INCHES NOMINAL IN
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch27
mounting_facility_diameter0.344 INCHES NOMINAL IN
NSN5340-00-350-6485
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H2945 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
APERTURE LENGTH: 2.312 INCHES NOMINAL IN
MATERIAL: IRON CAST OVERALL
STYLE DESIGNATOR: ROUND
MOUNTING METHOD: THREADED HOLE(S)
THREAD QUANTITY PER INCH: 27
OVERALL DIAMETER: 3.500 INCHES NOMINAL IN
OVERALL THICKNESS: 2.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE LENGTH2.312 INCHES NOMINAL IN
MATERIALIRON CAST OVERALL
STYLE DESIGNATORROUND
MOUNTING METHODTHREADED HOLE(S)
OVERALL LENGTH4.500 INCHES NOMINAL IN
THREAD QUANTITY PER INCH27
OVERALL DIAMETER3.500 INCHES NOMINAL IN
OVERALL THICKNESS2.312 INCHES NOMINAL IN
MOUNTING FACILITY DIAMETER0.344 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.125 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
22CR177Interchangeable
interchangeable cross-reference
interchangeable
14HE207Interchangeable
interchangeable cross-reference
interchangeable
6082Interchangeable
interchangeable cross-reference
interchangeable
T567Interchangeable
interchangeable cross-reference
interchangeable
HU1951Interchangeable
interchangeable cross-reference
interchangeable
7368760Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H2945?
H2945 is a FRAME,ACCESS HOLE.
What parts can replace H2945?
There are 15 known substitutes for H2945: 22CR177, 14HE207, 6082 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H2945?
H2945 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-350-6485. This indicates validated use in U.S. government and defense supply chains.
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