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NGN502ED3CRT1SF — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NGN502ED3CRT1SF: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.375 INCHES NOMINAL IN, material: IRON ALLOY 660 STANDOFF, thread_class: 3B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 0.250 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, flange_diameter: 0.454 INCHES MAXIMUM IN, flange_thickness: 0.188 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-709-1943, 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
NGN502ED3CRT1SF
NSN: 5340-01-709-1943
FSC: 5340 — Hardware, Commercial
CAGE: 1SFN4 — NORTHROP GRUMMAN SYSTEMS CORP INTEGRATED SYSTEMS SECTOR (USA)
SPECIFICATIONS
length0.375 INCHES NOMINAL IN
materialIRON ALLOY 660 STANDOFF
thread_class3B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length0.250 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
flange_diameter0.454 INCHES MAXIMUM IN
flange_thickness0.188 INCHES MINIMUM IN
special_featuresHIGH REUSE NUT ELEMENT(50 CYCLES)/HAS A SILICONE FREE FIXTURE (SF)
style_designatorFLANGED LEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentPASSIVATE STANDOFF
nominal_thread_size0.1900 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeRECTANGULAR
NSN5340-01-709-1943
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NGN502ED3CRT1SF 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: 0.454 INCHES MAXIMUM IN
•
LENGTH: 0.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: S2700 COMMERCIAL ITEM DESCRIPTION 10TH TREATMENT RESPONSE STANDOFF
•
FLANGE THICKNESS: 0.188 INCHES MINIMUM IN
•
CROSS-SECTIONAL WIDTH: 0.454 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.250 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: FLANGED LEFT INTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.454 INCHES MAXIMUM IN
LENGTH0.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONS2700 COMMERCIAL ITEM DESCRIPTION 10TH TREATMENT RESPONSE STANDOFF
FLANGE THICKNESS0.188 INCHES MINIMUM IN
CROSS-SECTIONAL WIDTH0.454 INCHES MAXIMUM IN
THREAD LENGTH0.250 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORFLANGED LEFT INTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF
CROSS-SECTIONAL LENGTH0.555 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
SUBSTITUTES & CROSS-REFERENCES 3
CB6003CR3CRT1CRSFSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NGN502ED3CRT1Reference document
Same NSN cross-reference
Reference document — Secondary reference
NGN502EDReference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 NGN502ED3CRT1SF?
NGN502ED3CRT1SF is a STANDOFF,THREADED,SPACING.
What parts can replace NGN502ED3CRT1SF?
There are 3 known substitutes for NGN502ED3CRT1SF: CB6003CR3CRT1CRSF, NGN502ED3CRT1, NGN502ED. Substitute compatibility should be verified for your specific system.
What is the NSN for NGN502ED3CRT1SF?
NGN502ED3CRT1SF is cataloged in the U.S. Government catalog under NSN 5340-01-709-1943. 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.