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311679 — LOCKING PLATE,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

311679: LOCKING PLATE,NUT AND BOLT.

The LOCKING PLATE,NUT AND BOLT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321, mounting_hole_diameter: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN, material_document_and_classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE, distance_between_mounting_hole_centers: 1.166 INCHES MINIMUM AND 1.176 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-560-0745, 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
311679
NSN: 5340-00-560-0745
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 321
mounting_hole_diameter0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
material_document_and_classificationAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE
distance_between_mounting_hole_centers1.166 INCHES MINIMUM AND 1.176 INCHES MAXIMUM IN
NSN5340-00-560-0745
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 311679 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
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.166 INCHES MINIMUM AND 1.176 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 321
TECHNICAL CHARACTERISTICS
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.166 INCHES MINIMUM AND 1.176 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
MATERIALSTEEL COMP 321
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 311679?
311679 is a LOCKING PLATE,NUT AND BOLT.
What is the NSN for 311679?
311679 is cataloged in the U.S. Government catalog under NSN 5340-00-560-0745. 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.