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1278M54P06 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1278M54P06: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include usage_design: AIRCRAFT, special_features: PACER SPECIAL, aperture_diameter: 1.42 INCHES MINIMUM AND 1.44 INCHES MAXIMUM IN, aperture_corner_radius: 0.98 INCHES MINIMUM AND 1.00 INCHES MAXIMUM IN, supplementary_features: MATERIAL: ALLOY B50TF14 CL-B, general_characteristics_item_description: 160 DEGREES, 1.45 RADIUS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-323-1719, 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
1278M54P06
NSN: 5340-01-323-1719
FSC: 5340 — Hardware, Commercial
CAGE: 82T87 — WARFIGHTER FOCUSED LOGISTICS INC (USA)
SPECIFICATIONS
usage_designAIRCRAFT
special_featuresPACER SPECIAL
aperture_diameter1.42 INCHES MINIMUM AND 1.44 INCHES MAXIMUM IN
aperture_corner_radius0.98 INCHES MINIMUM AND 1.00 INCHES MAXIMUM IN
supplementary_featuresMATERIAL: ALLOY B50TF14 CL-B
general_characteristics_item_description160 DEGREES, 1.45 RADIUS
part_name_assigned_by_controlling_agencyPLATE, BEARING
NSN5340-01-323-1719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1278M54P06 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
•
USAGE DESIGN: AIRCRAFT
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 160 DEGREES, 1.45 RADIUS
•
SUPPLEMENTARY FEATURES: MATERIAL: ALLOY B50TF14 CL-B
•
APERTURE DIAMETER: 1.42 INCHES MINIMUM AND 1.44 INCHES MAXIMUM IN
•
APERTURE CORNER RADIUS: 0.98 INCHES MINIMUM AND 1.00 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
USAGE DESIGNAIRCRAFT
GENERAL CHARACTERISTICS ITEM DESCRIPTION160 DEGREES, 1.45 RADIUS
SUPPLEMENTARY FEATURESMATERIAL: ALLOY B50TF14 CL-B
APERTURE DIAMETER1.42 INCHES MINIMUM AND 1.44 INCHES MAXIMUM IN
APERTURE CORNER RADIUS0.98 INCHES MINIMUM AND 1.00 INCHES MAXIMUM IN
SPECIAL FEATURESPACER SPECIAL
PART NAME ASSIGNED BY CONTROLLING AGENCYPLATE, BEARING
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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1278M54P06?
1278M54P06 is a PLATE,MOUNTING.
What is the NSN for 1278M54P06?
1278M54P06 is cataloged in the U.S. Government catalog under NSN 5340-01-323-1719. 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.