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SD52135 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SD52135: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 3.177 INCHES MINIMUM AND 3.187 INCHES MAXIMUM IN, material: STEEL STANDOFF, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 0.750 INCHES NOMINAL RIGHT EXTERNAL IN, flange_diameter: 0.406 INCHES NOMINAL IN, flange_thickness: 1.177 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-206-3015, 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
SD52135
NSN: 5340-00-206-3015
FSC: 5340 — Hardware, Commercial
CAGE: 24956 — UNITED TECHNOLOGIES CORP ELECTRO SYSTEMS INC (USA)
SPECIFICATIONS
length3.177 INCHES MINIMUM AND 3.187 INCHES MAXIMUM IN
materialSTEEL STANDOFF
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length0.750 INCHES NOMINAL RIGHT EXTERNAL IN
flange_diameter0.406 INCHES NOMINAL IN
flange_thickness1.177 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN
special_features0.060 IN.MIN,0.066 IN.MAX W BY 0.095 IN.DEEP SLOT ON FLAT OF INTERNAL THD END;AND 0.195 IN.MIN,0.200 IN.MAX DIA BY 0.095 IN.DEEP COUNTERBORE ON INTERNAL THD END IN
style_designatorFLANGED WITH LEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentZINC STANDOFF
nominal_thread_size0.190 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
thread_quantity_per_inch28 RIGHT EXTERNAL
NSN5340-00-206-3015
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SD52135 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
•
FLANGE DIAMETER: 0.406 INCHES NOMINAL IN
•
LENGTH: 3.177 INCHES MINIMUM AND 3.187 INCHES MAXIMUM IN
•
FLANGE THICKNESS: 1.177 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.750 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: FLANGED WITH LEFT INTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.190 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.406 INCHES NOMINAL IN
LENGTH3.177 INCHES MINIMUM AND 3.187 INCHES MAXIMUM IN
FLANGE THICKNESS1.177 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN
THREAD LENGTH0.750 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORFLANGED WITH LEFT INTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.190 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.250 INCHES RIGHT EXTERNAL IN
SPECIAL FEATURES0.060 IN.MIN,0.066 IN.MAX W BY 0.095 IN.DEEP SLOT ON FLAT OF INTERNAL THD END;AND 0.195 IN.MIN,0.200 IN.MAX DIA BY 0.095 IN.DEEP COUNTERBORE ON INTERNAL THD END 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SD52135?
SD52135 is a STANDOFF,THREADED,SPACING.
What is the NSN for SD52135?
SD52135 is cataloged in the U.S. Government catalog under NSN 5340-00-206-3015. 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.