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121455 — PLATE,PRESSURE,SPECIAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

121455: PLATE,PRESSURE,SPECIAL.

The PLATE,PRESSURE,SPECIAL is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-977-2782, 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
121455
NSN: 4320-00-977-2782
NIINs: 009772782, 013397630, 013536084
FSC: 4320 — Power and Hand Pumps
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN4320-00-977-2782
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLATE,PRESSURE,SPECIAL TITLE COMPONENT PN 121455 MFR PLATE,PRESSURE,SPECIAL
KEY FEATURES
•
CENTER FLANGE THICKNESS: 0.188 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
ANCHOR FLANGE WIDTH: 0.125 INCHES NOMINAL IN
•
BODY STYLE: EXTERNAL LOCKING FLANGE
•
BODY OUTSIDE DIAMETER: 5.123 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
•
END TO FLANGE DISTANCE: 0.219 INCHES NOMINAL IN
•
DISTANCE BELOW CENTERLINE: 0.250 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CENTER FLANGE THICKNESS0.188 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
ANCHOR FLANGE WIDTH0.125 INCHES NOMINAL IN
BODY STYLEEXTERNAL LOCKING FLANGE
BODY OUTSIDE DIAMETER5.123 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
END TO FLANGE DISTANCE0.219 INCHES NOMINAL IN
OVERALL LENGTH0.625 INCHES NOMINAL IN
DISTANCE BELOW CENTERLINE0.250 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.358 INCHES MINIMUM AND 3.360 INCHES MAXIMUM IN
SMALLEST EXTERNAL ANCHOR FLANGE RADIUS5.438 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
R121455Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 121455?
121455 is a PLATE,PRESSURE,SPECIAL.
What parts can replace 121455?
There is 1 known substitute for 121455: R121455. Substitute compatibility should be verified for your specific system.
What is the NSN for 121455?
121455 is cataloged in the U.S. Government catalog under NSN 4320-00-977-2782. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.