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752-6405260-5 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

752-6405260-5: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 1.750 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN, style_designator: LEFT INTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD), width_across_flats: 1.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-443-9604, 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
752-6405260-5
NSN: 5340-01-443-9604
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length1.750 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
style_designatorLEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
width_across_flats1.063 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeHEXAGON
right_counterbore_depth2.000 INCHES NOMINAL IN
thread_quantity_per_inch11 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
right_counterbore_diameter0.531 INCHES NOMINAL IN
NSN5340-01-443-9604
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 752-6405260-5 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
•
RIGHT COUNTERBORE DIAMETER: 0.531 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.063 INCHES NOMINAL IN
•
THREAD LENGTH: 1.750 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: LEFT INTERNAL THREAD
•
RIGHT COUNTERBORE DEPTH: 2.000 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
•
NOMINAL THREAD SIZE: 0.625 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS
RIGHT COUNTERBORE DIAMETER0.531 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.063 INCHES NOMINAL IN
THREAD LENGTH1.750 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORLEFT INTERNAL THREAD
RIGHT COUNTERBORE DEPTH2.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.625 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
CROSS-SECTIONAL SHAPEHEXAGON
THREAD CLASS3B LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH11 LEFT INTERNAL (INCLUDES THRU THREAD)
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 752-6405260-5?
752-6405260-5 is a STANDOFF,THREADED,SPACING.
What is the NSN for 752-6405260-5?
752-6405260-5 is cataloged in the U.S. Government catalog under NSN 5340-01-443-9604. 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.