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P4078903 — LEAF,STRAP HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

P4078903: LEAF,STRAP HINGE.

The LEAF,STRAP HINGE is a the manufacturer industrial component. Key specifications include material: STEEL BODY, hinge_pin: NOT INCLUDED, body_width: 1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN, knuckle_type: FRICTION, performance_type: NOT RATED, style_designator: STRAP. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-374-0477, 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
P4078903
NSN: 5340-01-374-0477
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL BODY
hinge_pinNOT INCLUDED
body_width1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
knuckle_typeFRICTION
knuckle_quantity2
performance_typeNOT RATED
style_designatorSTRAP
surface_treatmentZINC AND CHROMATE BODY
material_thickness0.999 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
reversible_featureNOT INCLUDED
mounting_hole_diameter0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
mounting_hole_quantity4
NSN5340-01-374-0477
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P4078903 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: 4
•
REVERSIBLE FEATURE: NOT INCLUDED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE BODY
•
BODY WIDTH: 1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAP
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A36 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
MOUNTING HOLE DIAMETER: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
•
PIN CENTER TO BODY EDGE DISTANCE: 5.790 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY4
REVERSIBLE FEATURENOT INCLUDED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE BODY
BODY WIDTH1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAP
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A36 ASSN STD SINGLE MATERIAL RESPONSE BODY
MOUNTING HOLE DIAMETER0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
PIN CENTER TO BODY EDGE DISTANCE5.790 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.999 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
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 P4078903?
P4078903 is a LEAF,STRAP HINGE.
What is the NSN for P4078903?
P4078903 is cataloged in the U.S. Government catalog under NSN 5340-01-374-0477. 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.