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P4078897 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

P4078897: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN, overall_height: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, overall_length: 3.780 INCHES MINIMUM AND 3.820 INCHES MAXIMUM IN, surface_treatment: ZINC AND CHROMATE, mounting_hole_type: COUNTERSUNK. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-374-0419, 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
P4078897
NSN: 5340-01-374-0419
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL
overall_width1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
overall_height0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
overall_length3.780 INCHES MINIMUM AND 3.820 INCHES MAXIMUM IN
surface_treatmentZINC AND CHROMATE
mounting_hole_typeCOUNTERSUNK
mounting_hole_diameter0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
mounting_hole_quantity2
material_document_and_classificationASTM A36 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE
NSN5340-01-374-0419
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P4078897 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
•
MOUNTING HOLE QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A36 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC AND CHROMATE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
OVERALL HEIGHT0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A36 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
OVERALL LENGTH3.780 INCHES MINIMUM AND 3.820 INCHES MAXIMUM IN
OVERALL WIDTH1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
SURFACE TREATMENTZINC AND CHROMATE
MATERIALSTEEL
MOUNTING HOLE TYPECOUNTERSUNK
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P4078897?
P4078897 is a BRACKET,MOUNTING.
What is the NSN for P4078897?
P4078897 is cataloged in the U.S. Government catalog under NSN 5340-01-374-0419. 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.